diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index 3c71ff07..55203be7 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -1,3 +1,3 @@
 # Code of Conduct
 
-Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please [read the full text](https://code.facebook.com/pages/876921332402685/open-source-code-of-conduct) so that you can understand what actions will and will not be tolerated.
\ No newline at end of file
+Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please [read the full text](https://code.facebook.com/pages/876921332402685/open-source-code-of-conduct) so that you can understand what actions will and will not be tolerated.
diff --git a/Duckling/Ordinal/MN/Corpus.hs b/Duckling/Ordinal/MN/Corpus.hs
index 2b59c3e0..6bab9451 100644
--- a/Duckling/Ordinal/MN/Corpus.hs
+++ b/Duckling/Ordinal/MN/Corpus.hs
@@ -50,7 +50,7 @@ allExamples = concat
              [ "31-р"
              ]
   , examples (OrdinalData 48)
-             [ 
+             [
                "48-р"
              ]
   , examples (OrdinalData 99)
diff --git a/Duckling/PhoneNumber/AR/Rules.hs b/Duckling/PhoneNumber/AR/Rules.hs
index b5bd3212..a9ee679c 100644
--- a/Duckling/PhoneNumber/AR/Rules.hs
+++ b/Duckling/PhoneNumber/AR/Rules.hs
@@ -27,7 +27,7 @@ rulePhoneNumber :: Rule
 rulePhoneNumber = Rule
   { name = "phone number"
   , pattern =
-    -- Arabic is a right to left langauge except for numbers, which are read
+    -- Arabic is a right to left language except for numbers, which are read
     -- left to right. This regex uses the unicode range for Arabic numbers
     -- [\1632-\1641] to make the code easier to read and maintain. The unicode
     -- sequence \1601\1585\1593\1610, corresponding to فرعي, is a popular
diff --git a/Duckling/Temperature/MN/Corpus.hs b/Duckling/Temperature/MN/Corpus.hs
index 4531e25a..77270017 100644
--- a/Duckling/Temperature/MN/Corpus.hs
+++ b/Duckling/Temperature/MN/Corpus.hs
@@ -8,7 +8,7 @@
 {-# LANGUAGE OverloadedStrings #-}
 
 module Duckling.Temperature.MN.Corpus
-  ( corpus 
+  ( corpus
   ) where
 
 import Prelude
diff --git a/Duckling/Time/CA/Rules.hs b/Duckling/Time/CA/Rules.hs
index 95c8146d..a4357e46 100644
--- a/Duckling/Time/CA/Rules.hs
+++ b/Duckling/Time/CA/Rules.hs
@@ -1460,7 +1460,7 @@ rulePeriodicHolidays = mkRuleHolidays
   , ( "Dia Internacional de l'Record del Tràfic d'Esclaus i la seva Abolició", "dia internacional de l'record del tr(à|a)fic d'esclaus i de la seva abolici(ó|o)", monthDay 8 23 )
   , ( "Dia Internacional del Derecho a la Verdad en relación con Violaciones Graves de los Derechos Humanos y de la Dignidad de las Víctimas de las Naciones Unidas", "dia internacional del derecho a la verdad en relaci(ó|o)n con violaciones graves de los derechos humanos y de la dignidad de las v(í|i)ctimas de las naciones unidas", monthDay 3 24 )
   , ( "Dia Internacional per a l'Eliminació Total de les Armes Nuclears", "dia internacional per a l'eliminaci(ó|o) total de les armes nuclears", monthDay 9 26 )
-  , ( "Dia Internacional de les Nacions Unides a Suport de les Víctimes de la Tortura", "dia internacional de les Nacions Unides en suport de les v(í|i)ctimes de la tortura", monthDay 6 26 )
+  , ( "Dia Internacional de les Nacions Unides a Support de les Víctimes de la Tortura", "dia internacional de les Nacions Unides en support de les v(í|i)ctimes de la tortura", monthDay 6 26 )
   , ( "Dia Internacional de la Beneficència", "dia internacional de la benefic(è|e)ncia", monthDay 9 5 )
   , ( "Dia Internacional de Commemoració anual en memòria de les Víctimes de l'Holocaust", "dia internacional de commemoraci(ó|o) anual en mem(ò|o)ria de les v(í|i)ctimes de l'holocaust", monthDay 1 27 )
   , ( "Dia Internacional de la Democràcia", "dia (internacional)?de la democr(à|a)cia", monthDay 9 15 )
diff --git a/Duckling/Types/Document.hs b/Duckling/Types/Document.hs
index 5d223549..ed0cd758 100644
--- a/Duckling/Types/Document.hs
+++ b/Duckling/Types/Document.hs
@@ -142,7 +142,7 @@ isRangeValid = \case
       (start == end - 2 &&
         isArabicProclitic2 (doc ! start) (doc ! (start + 1)) &&
         (start == 0 || isDifferent (doc ! (start - 1)) (doc ! start))) ||
-      -- Is preceeded by proclitic
+      -- Is preceded by proclitic
       (start /= 0 && isArabicProclitic (doc ! (start - 1)) &&
         (end == length doc ||
           isDifferent (doc ! (end - 1)) (doc ! (end)))) ||
diff --git a/Duckling/Volume/MN/Rules.hs b/Duckling/Volume/MN/Rules.hs
index 5b53282d..0f9acb68 100644
--- a/Duckling/Volume/MN/Rules.hs
+++ b/Duckling/Volume/MN/Rules.hs
@@ -45,7 +45,6 @@ rulesVolumes = map go volumes
       }
 
 rules :: [Rule]
-rules = [ 
+rules = [
         ]
         ++ rulesVolumes
-
diff --git a/exe/CustomDimensionExample.hs b/exe/CustomDimensionExample.hs
index e38faf49..49404d08 100644
--- a/exe/CustomDimensionExample.hs
+++ b/exe/CustomDimensionExample.hs
@@ -14,7 +14,7 @@
 {-# LANGUAGE TypeApplications #-}
 {-# LANGUAGE TypeFamilies #-}
 
-module Main (main) where
+module CustomDimensionExample (main) where
 
 import Control.DeepSeq
 import Control.Monad
diff --git a/exe/DucklingExpensive.hs b/exe/DucklingExpensive.hs
index 7d34f636..840b3385 100644
--- a/exe/DucklingExpensive.hs
+++ b/exe/DucklingExpensive.hs
@@ -8,7 +8,7 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# OPTIONS -fno-full-laziness #-}
 
-module Main (main) where
+module DucklingExpensive (main) where
 
 import Control.Monad
 import System.Environment
diff --git a/exe/DucklingRequestSample.hs b/exe/DucklingRequestSample.hs
index 0baf7eb6..b54dfc71 100644
--- a/exe/DucklingRequestSample.hs
+++ b/exe/DucklingRequestSample.hs
@@ -8,7 +8,7 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# OPTIONS -fno-full-laziness #-}
 
-module Main (main) where
+module DucklingRequestSample (main) where
 
 import Control.Monad
 import System.Environment
diff --git a/exe/ExampleMain.hs b/exe/ExampleMain.hs
index 1630b526..8cd88237 100644
--- a/exe/ExampleMain.hs
+++ b/exe/ExampleMain.hs
@@ -9,6 +9,8 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TypeApplications #-}
 
+module ExampleMain where
+
 import Control.Applicative hiding (empty)
 import Control.Arrow ((***))
 import Control.Exception (SomeException, catch)
diff --git a/exe/RegenMain.hs b/exe/RegenMain.hs
index 96c8ea94..4ad64d28 100644
--- a/exe/RegenMain.hs
+++ b/exe/RegenMain.hs
@@ -5,6 +5,8 @@
 -- LICENSE file in the root directory of this source tree.
 
 
+module RegenMain where
+
 import Prelude
 import Duckling.Ranking.Generate
 
diff --git a/tests/Duckling/Volume/ZH/Tests.hs b/tests/Duckling/Volume/ZH/Tests.hs
index 3c6ddea2..6c528d88 100644
--- a/tests/Duckling/Volume/ZH/Tests.hs
+++ b/tests/Duckling/Volume/ZH/Tests.hs
@@ -1,4 +1,3 @@
-
 -- Copyright (c) 2016-present, Facebook, Inc.
 -- All rights reserved.
 --