diff --git a/.gitignore b/.gitignore
index 0021830c..b60caff2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,5 @@ output/
 .output
 .grin-output/
 .vscode/
+*.out
+
diff --git a/grin/grin.cabal b/grin/grin.cabal
index 4abf1c71..f0a26ff2 100644
--- a/grin/grin.cabal
+++ b/grin/grin.cabal
@@ -232,6 +232,7 @@ executable grin-test
                      , system-posix-redirect
                      , process
                      , bytestring
+                     , MissingH
 
   other-modules:
                      Transformations.Simplifying.RegisterIntroductionSpec
@@ -316,6 +317,7 @@ executable grin-end-to-end-test
                      , system-posix-redirect
                      , process
                      , bytestring
+                     , MissingH
   other-modules:
                      Transformations.Simplifying.RegisterIntroductionSpec
                      Transformations.Simplifying.CaseSimplificationSpec
diff --git a/grin/test-data/dead-parameter-elimination/pnode.grin.expected b/grin/test-data/dead-parameter-elimination/pnode.grin.expected
index 0c1c57ff..df3f50cc 100644
--- a/grin/test-data/dead-parameter-elimination/pnode.grin.expected
+++ b/grin/test-data/dead-parameter-elimination/pnode.grin.expected
@@ -1,3 +1,4 @@
+
 grinMain =
   a0 <- pure (CInt 5)
   a1 <- pure (CInt 5)
@@ -5,34 +6,27 @@ grinMain =
   p0 <- store a0
   p1 <- store a1
   p2 <- store a2
-
   foo3 <- pure (P3foo)
   pfoo3 <- store foo3
-
-  foo3ap  <- pure (Fap pfoo3 p0)
+  foo3ap <- pure (Fap pfoo3 p0)
   pfoo3ap <- store foo3ap
-  foo2    <- eval pfoo3ap
-  pfoo2   <- store foo2
-
-  foo2ap  <- pure (Fap pfoo2 p1)
+  foo2 <- eval $ pfoo3ap
+  pfoo2 <- store foo2
+  foo2ap <- pure (Fap pfoo2 p1)
   pfoo2ap <- store foo2ap
-  foo1    <- eval pfoo2ap
-  pfoo1   <- store foo1
-
-  foo1ap  <- pure (Fap pfoo1 p2)
+  foo1 <- eval $ pfoo2ap
+  pfoo1 <- store foo1
+  foo1ap <- pure (Fap pfoo1 p2)
   pfoo1ap <- store foo1ap
-  fooRet  <- eval pfoo1ap
-
+  fooRet <- eval $ pfoo1ap
   pure fooRet
 
-
 foo y0 =
   z0 <- pure (#undefined :: #ptr)
   x0 <- pure (#undefined :: #ptr)
-  y0' <- eval y0
+  y0' <- eval $ y0
   pure y0'
 
--- apply always gets the function node in whnf
 apply pf cur =
   case pf of
     (P3foo) ->
@@ -42,31 +36,33 @@ apply pf cur =
       n1 <- pure (P1foo v0 cur)
       pure n1
     (P1foo v1 v2) ->
-      n2 <- foo v2
+      n2 <- foo $ v2
       pure n2
 
 ap f x =
-  f' <- eval f
-  apply f' x
+  f' <- eval $ f
+  apply $ f' x
 
 eval p =
   v <- fetch p
   case v of
-    (CInt n) -> pure v
-
-    (P3foo)       -> pure v
-    (P2foo v3)    -> pure v
-    (P1foo v4 v5) -> pure v
-
+    (CInt n) ->
+      pure v
+    (P3foo) ->
+      pure v
+    (P2foo v3) ->
+      pure v
+    (P1foo v4 v5) ->
+      pure v
     (Ffoo b0 b1 b2) ->
-      w0 <- foo b1
+      w0 <- foo $ b1
       update p w0
       pure w0
     (Fapply g y) ->
-      w1 <- apply g y
+      w1 <- apply $ g y
       update p w1
       pure w1
     (Fap h z) ->
-      w2 <- ap h z
+      w2 <- ap $ h z
       update p w2
       pure w2
diff --git a/grin/test-data/dead-parameter-elimination/pnode.grin.opts b/grin/test-data/dead-parameter-elimination/pnode.grin.opts
index e69de29b..3bdcd17a 100644
--- a/grin/test-data/dead-parameter-elimination/pnode.grin.opts
+++ b/grin/test-data/dead-parameter-elimination/pnode.grin.opts
@@ -0,0 +1,3 @@
+- "--quiet"
+- "--dpe"
+- "--save-grin=$$$OUT$$$"
diff --git a/grin/test/Test/Hspec/Compiler.hs b/grin/test/Test/Hspec/Compiler.hs
index aa27679b..b0603779 100644
--- a/grin/test/Test/Hspec/Compiler.hs
+++ b/grin/test/Test/Hspec/Compiler.hs
@@ -20,6 +20,7 @@ import Control.Exception (catch)
 import qualified Data.Map as Map
 import Data.Char (isDigit)
 import Data.List (isSuffixOf)
+import Data.String.Utils (replace)
 import System.Directory
 
 
@@ -51,7 +52,7 @@ evaluatePipelineTest input options expected params actionWith progressCallback =
                     Binary fp -> [fp, "--load-binary"]
                     Textual fp -> [fp]
         let outFile = inputToFilePath input <.> "out"
-        mainWithArgs $ args ++ options ++ ["--save-grin=" ++ outFile]
+        mainWithArgs $ args ++ (map (replace "$$$OUT$$$" outFile) options)
         content  <- readFile outFile
         expected <- readFile expected
         if (content == expected)