diff --git a/pkgs/development/tools/haskell/hdevtools/default.nix b/pkgs/development/tools/haskell/hdevtools/default.nix
index 36741f97458..da5eb778803 100644
--- a/pkgs/development/tools/haskell/hdevtools/default.nix
+++ b/pkgs/development/tools/haskell/hdevtools/default.nix
@@ -1,16 +1,16 @@
 { cabal, cmdargs, ghcPaths, network, syb, time }:
 
 cabal.mkDerivation (self: {
-    pname = "hdevtools";
-    version = "0.1.0.5";
-    sha256 = "1a218m817q35f52fv6mn28sfv136i6fm2mzgdidpm24pc0585gl7";
-    isLibrary = false;
-    isExecutable = true;
-    buildDepends = [ cmdargs ghcPaths network syb time ];
-    meta = {
-        homepage = "https://github.com/bitc/hdevtools/";
-        description = "Persistent GHC powered background server for FAST haskell development tools";
-        license = self.stdenv.lib.licenses.mit;
-        platforms = self.ghc.meta.platforms;
-    };
+  pname = "hdevtools";
+  version = "0.1.0.5";
+  sha256 = "1a218m817q35f52fv6mn28sfv136i6fm2mzgdidpm24pc0585gl7";
+  isLibrary = false;
+  isExecutable = true;
+  buildDepends = [ cmdargs ghcPaths network syb time ];
+  meta = {
+    homepage = "https://github.com/bitc/hdevtools/";
+    description = "Persistent GHC powered background server for FAST haskell development tools";
+    license = self.stdenv.lib.licenses.mit;
+    platforms = self.ghc.meta.platforms;
+  };
 })