diff --git a/pkgs/development/libraries/haskell/ghc-mod/default.nix b/pkgs/development/libraries/haskell/ghc-mod/default.nix
index ee2cbdbd2032..7956117bb945 100644
--- a/pkgs/development/libraries/haskell/ghc-mod/default.nix
+++ b/pkgs/development/libraries/haskell/ghc-mod/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "ghc-mod";
-  version = "4.1.3";
-  sha256 = "0n7nbjbiiphlasqfcxx15fa8axwd9csq2nh3r0wvkrgpsazdlw8c";
+  version = "4.1.5";
+  sha256 = "192v0h9nhi7xgvidyisn3rpr6kjpkibrm2b859b6a92gp0h37nnn";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [
@@ -21,13 +21,11 @@ cabal.mkDerivation (self: {
   configureFlags = "--datasubdir=${self.pname}-${self.version}";
   postInstall = ''
     cd $out/share/$pname-$version
-    sed -i -e 's/"-b" "\\n" "-l"/"-l" "-b" "\\"\\\\n\\""/' ghc-process.el
     make
     rm Makefile
     cd ..
     ensureDir "$out/share/emacs"
     mv $pname-$version emacs/site-lisp
-
     mv $out/bin/ghc-mod $out/bin/.ghc-mod-wrapped
     cat - > $out/bin/ghc-mod <<EOF
     #! ${self.stdenv.shell}
@@ -36,15 +34,6 @@ cabal.mkDerivation (self: {
     eval exec $out/bin/.ghc-mod-wrapped \$COMMAND \$( ${self.ghc.GHCGetPackages} ${self.ghc.version} | tr " " "\n" | tail -n +2 | paste -d " " - - | sed 's/.*/-g "&"/' | tr "\n" " ") "\$@"
     EOF
     chmod +x $out/bin/ghc-mod
-
-    mv $out/bin/ghc-modi $out/bin/.ghc-modi-wrapped
-    cat - > $out/bin/ghc-modi <<EOF
-    #! ${self.stdenv.shell}
-    COMMAND=\$1
-    shift
-    eval exec $out/bin/.ghc-modi-wrapped \$COMMAND \$( ${self.ghc.GHCGetPackages} ${self.ghc.version} | tr " " "\n" | tail -n +2 | paste -d " " - - | sed 's/.*/-g "&"/' | tr "\n" " ") "\$@"
-    EOF
-    chmod +x $out/bin/ghc-modi
   '';
   meta = {
     homepage = "http://www.mew.org/~kazu/proj/ghc-mod/";