diff --git a/benchmark/lib/Streamly/Benchmark/Prelude.hs b/benchmark/lib/Streamly/Benchmark/Prelude.hs
index 3982b8825..0d003a2d0 100644
--- a/benchmark/lib/Streamly/Benchmark/Prelude.hs
+++ b/benchmark/lib/Streamly/Benchmark/Prelude.hs
@@ -10,7 +10,59 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE RankNTypes #-}
 
-module Streamly.Benchmark.Prelude where
+module Streamly.Benchmark.Prelude
+    ( absTimes
+    , apDiscardFst
+    , apDiscardSnd
+    , apLiftA2
+    , benchIO
+    , benchIOSink
+    , benchIOSrc
+    , breakAfterSome
+    , composeN
+    , concatFoldableWith
+    , concatForFoldableWith
+    , concatPairsWith
+    , concatStreamsWith
+    , filterAllInM
+    , filterAllOutM
+    , filterSome
+    , fmapN
+    , mapM
+    , mapN
+    , mkAsync
+    , monadThen
+    , runToList
+    , sourceConcatMapId
+    , sourceFoldMapM
+    , sourceFoldMapWith
+    , sourceFoldMapWithM
+    , sourceFoldMapWithStream
+    , sourceFracFromThenTo
+    , sourceFracFromTo
+    , sourceFromFoldable
+    , sourceFromFoldableM
+    , sourceFromList
+    , sourceFromListM
+    , sourceIntegerFromStep
+    , sourceIntFromThenTo
+    , sourceIntFromTo
+    , sourceUnfoldr
+    , sourceUnfoldrAction
+    , sourceUnfoldrM
+    , sourceUnfoldrMSerial
+    , toListM
+    , toListSome
+    , toNull
+    , toNullAp
+    , toNullM
+    , toNullM3
+    , transformComposeMapM
+    , transformMapM
+    , transformTeeMapM
+    , transformZipMapM
+    )
+where
 
 import Control.Applicative (liftA2)
 import Control.DeepSeq (NFData(..))
@@ -20,6 +72,7 @@ import Data.Functor.Identity (Identity)
 import Data.Semigroup (Semigroup((<>)))
 #endif
 import GHC.Exception (ErrorCall)
+import Prelude hiding (mapM)
 import System.Random (randomRIO)
 
 import qualified Data.Foldable as F
diff --git a/benchmark/streamly-benchmarks.cabal b/benchmark/streamly-benchmarks.cabal
index 7a1126f69..14135ef2e 100644
--- a/benchmark/streamly-benchmarks.cabal
+++ b/benchmark/streamly-benchmarks.cabal
@@ -84,6 +84,7 @@ common compile-options
                       -Wredundant-constraints
                       -Wnoncanonical-monad-instances
                       -Rghc-timing
+                      -Wmissing-export-lists
 
     if flag(has-llvm)
       ghc-options: -fllvm
diff --git a/src/Streamly/Internal/Unicode/Char/Parser.hs b/src/Streamly/Internal/Unicode/Char/Parser.hs
index a91793ee9..ba5c3d7bb 100644
--- a/src/Streamly/Internal/Unicode/Char/Parser.hs
+++ b/src/Streamly/Internal/Unicode/Char/Parser.hs
@@ -11,12 +11,39 @@
 -- Unicode Char stream and then use these parsers on the Char stream.
 
 -- XXX Add explicit export list.
-module Streamly.Internal.Unicode.Char.Parser where
+module Streamly.Internal.Unicode.Char.Parser
+    ( alpha
+    , alphaNum
+    , ascii
+    , asciiLower
+    , asciiUpper
+    , char
+    , decimal
+    , digit
+    , double
+    , hexadecimal
+    , hexDigit
+    , latin1
+    , letter
+    , lower
+    , mark
+    , number
+    , octDigit
+    , print
+    , punctuation
+    , separator
+    , signed
+    , space
+    , symbol
+    , upper
+    )
+where
 
 import Control.Applicative (Alternative(..))
 import Control.Monad.Catch (MonadCatch)
 import Data.Bits (Bits, (.|.), shiftL)
 import Data.Char (ord)
+import Prelude hiding (print)
 import Streamly.Internal.Data.Parser (Parser)
 
 import qualified Data.Char as Char
diff --git a/streamly.cabal b/streamly.cabal
index df2db47e6..ec4305e4e 100644
--- a/streamly.cabal
+++ b/streamly.cabal
@@ -251,6 +251,7 @@ common compile-options
                       -Wincomplete-uni-patterns
                       -Wredundant-constraints
                       -Wnoncanonical-monad-instances
+                      -Wmissing-export-lists
                       -Rghc-timing
 
     if flag(has-llvm)
diff --git a/test/Streamly/Test/Data/Array.hs b/test/Streamly/Test/Data/Array.hs
index 4444a7294..893dbbdf6 100644
--- a/test/Streamly/Test/Data/Array.hs
+++ b/test/Streamly/Test/Data/Array.hs
@@ -6,7 +6,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Data.Array where
+module Streamly.Test.Data.Array (main) where
 
 #include "Streamly/Test/Data/Array/CommonImports.hs"
 
diff --git a/test/Streamly/Test/Data/Array/Prim.hs b/test/Streamly/Test/Data/Array/Prim.hs
index baa4c1a22..9a930d6e1 100644
--- a/test/Streamly/Test/Data/Array/Prim.hs
+++ b/test/Streamly/Test/Data/Array/Prim.hs
@@ -6,7 +6,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Data.Array.Prim where
+module Streamly.Test.Data.Array.Prim (main) where
 
 #include "Streamly/Test/Data/Array/CommonImports.hs"
 
diff --git a/test/Streamly/Test/Data/Array/Prim/Pinned.hs b/test/Streamly/Test/Data/Array/Prim/Pinned.hs
index 64fd28449..4a5a5e270 100644
--- a/test/Streamly/Test/Data/Array/Prim/Pinned.hs
+++ b/test/Streamly/Test/Data/Array/Prim/Pinned.hs
@@ -6,7 +6,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Data.Array.Prim.Pinned where
+module Streamly.Test.Data.Array.Prim.Pinned (main) where
 
 #include "Streamly/Test/Data/Array/CommonImports.hs"
 
diff --git a/test/Streamly/Test/Data/SmallArray.hs b/test/Streamly/Test/Data/SmallArray.hs
index 92f9d8845..378bdcc0e 100644
--- a/test/Streamly/Test/Data/SmallArray.hs
+++ b/test/Streamly/Test/Data/SmallArray.hs
@@ -6,7 +6,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Data.SmallArray where
+module Streamly.Test.Data.SmallArray (main) where
 
 #include "Streamly/Test/Data/Array/CommonImports.hs"
 
diff --git a/test/Streamly/Test/Prelude/Ahead.hs b/test/Streamly/Test/Prelude/Ahead.hs
index da64a77ec..a3de5c15e 100644
--- a/test/Streamly/Test/Prelude/Ahead.hs
+++ b/test/Streamly/Test/Prelude/Ahead.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.Ahead where
+module Streamly.Test.Prelude.Ahead (main) where
 
 #if __GLASGOW_HASKELL__ < 808
 import Data.Semigroup ((<>))
diff --git a/test/Streamly/Test/Prelude/Async.hs b/test/Streamly/Test/Prelude/Async.hs
index 8abfa61b2..43081793f 100644
--- a/test/Streamly/Test/Prelude/Async.hs
+++ b/test/Streamly/Test/Prelude/Async.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.Async where
+module Streamly.Test.Prelude.Async (main) where
 
 import Control.Concurrent (threadDelay)
 import Data.List (sort)
diff --git a/test/Streamly/Test/Prelude/Concurrent.hs b/test/Streamly/Test/Prelude/Concurrent.hs
index 9bf4f5675..01fee0d9b 100644
--- a/test/Streamly/Test/Prelude/Concurrent.hs
+++ b/test/Streamly/Test/Prelude/Concurrent.hs
@@ -9,7 +9,7 @@
 
 {-# LANGUAGE OverloadedLists #-}
 
-module Streamly.Test.Prelude.Concurrent where
+module Streamly.Test.Prelude.Concurrent (main) where
 
 import Control.Concurrent (MVar, takeMVar, threadDelay, putMVar, newEmptyMVar)
 import Control.Exception
diff --git a/test/Streamly/Test/Prelude/Fold.hs b/test/Streamly/Test/Prelude/Fold.hs
index 3278ad603..68b1195f9 100644
--- a/test/Streamly/Test/Prelude/Fold.hs
+++ b/test/Streamly/Test/Prelude/Fold.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.Fold where
+module Streamly.Test.Prelude.Fold (main) where
 
 #ifdef DEVBUILD
 import Control.Concurrent (threadDelay)
diff --git a/test/Streamly/Test/Prelude/Parallel.hs b/test/Streamly/Test/Prelude/Parallel.hs
index e3fc5860a..f0e2a3317 100644
--- a/test/Streamly/Test/Prelude/Parallel.hs
+++ b/test/Streamly/Test/Prelude/Parallel.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.Parallel where
+module Streamly.Test.Prelude.Parallel (main) where
 
 import Data.List (sort)
 #if !(MIN_VERSION_base(4,11,0))
diff --git a/test/Streamly/Test/Prelude/Rate.hs b/test/Streamly/Test/Prelude/Rate.hs
index e6d1ffc55..b09d16ff6 100644
--- a/test/Streamly/Test/Prelude/Rate.hs
+++ b/test/Streamly/Test/Prelude/Rate.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.Rate where
+module Streamly.Test.Prelude.Rate (main) where
 
 import qualified Streamly.Prelude as S
 
diff --git a/test/Streamly/Test/Prelude/Serial.hs b/test/Streamly/Test/Prelude/Serial.hs
index b46660351..3309c713f 100644
--- a/test/Streamly/Test/Prelude/Serial.hs
+++ b/test/Streamly/Test/Prelude/Serial.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.Serial where
+module Streamly.Test.Prelude.Serial (checkTakeDropTime, main) where
 
 import Control.Concurrent ( threadDelay )
 import Control.Monad ( when, forM_ )
diff --git a/test/Streamly/Test/Prelude/WAsync.hs b/test/Streamly/Test/Prelude/WAsync.hs
index 34683a98c..0fb2ca541 100644
--- a/test/Streamly/Test/Prelude/WAsync.hs
+++ b/test/Streamly/Test/Prelude/WAsync.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.WAsync where
+module Streamly.Test.Prelude.WAsync (main) where
 
 #ifdef DEVBUILD
 import Control.Concurrent ( threadDelay )
diff --git a/test/Streamly/Test/Prelude/WSerial.hs b/test/Streamly/Test/Prelude/WSerial.hs
index 5cf5d0090..1f2da3d97 100644
--- a/test/Streamly/Test/Prelude/WSerial.hs
+++ b/test/Streamly/Test/Prelude/WSerial.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.WSerial where
+module Streamly.Test.Prelude.WSerial (main) where
 
 import Data.List (sort)
 #if __GLASGOW_HASKELL__ < 808
diff --git a/test/Streamly/Test/Prelude/ZipAsync.hs b/test/Streamly/Test/Prelude/ZipAsync.hs
index 153227678..954b7e3ca 100644
--- a/test/Streamly/Test/Prelude/ZipAsync.hs
+++ b/test/Streamly/Test/Prelude/ZipAsync.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.ZipAsync where
+module Streamly.Test.Prelude.ZipAsync  (main) where
 
 import Test.Hspec.QuickCheck
 import Test.Hspec as H
diff --git a/test/Streamly/Test/Prelude/ZipSerial.hs b/test/Streamly/Test/Prelude/ZipSerial.hs
index a25c6bfb7..e7273dac2 100644
--- a/test/Streamly/Test/Prelude/ZipSerial.hs
+++ b/test/Streamly/Test/Prelude/ZipSerial.hs
@@ -7,7 +7,7 @@
 -- Stability   : experimental
 -- Portability : GHC
 
-module Streamly.Test.Prelude.ZipSerial where
+module Streamly.Test.Prelude.ZipSerial (main) where
 
 #if __GLASGOW_HASKELL__ < 808
 import Data.Semigroup ((<>))
diff --git a/test/streamly-tests.cabal b/test/streamly-tests.cabal
index 9df947cd1..9f060b6e8 100644
--- a/test/streamly-tests.cabal
+++ b/test/streamly-tests.cabal
@@ -67,6 +67,7 @@ common compile-options
                       -Wincomplete-uni-patterns
                       -Wredundant-constraints
                       -Wnoncanonical-monad-instances
+                      -Wmissing-export-lists
                       -Rghc-timing
 
     if flag(has-llvm)