From 86d0a9c420977edbf6b6b55c7d104f8669382afa Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Fri, 4 Mar 2016 22:17:53 +0100
Subject: [PATCH] haskell.lib: fix use of callPackage

---
 pkgs/development/haskell-modules/lib.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/haskell-modules/lib.nix b/pkgs/development/haskell-modules/lib.nix
index 51adb582e54..59020264b3c 100644
--- a/pkgs/development/haskell-modules/lib.nix
+++ b/pkgs/development/haskell-modules/lib.nix
@@ -81,7 +81,7 @@ rec {
 
   buildStrictly = pkg: buildFromSdist (appendConfigureFlag pkg "--ghc-option=-Wall --ghc-option=-Werror");
 
-  buildStackProject = callPackage ../development/haskell-modules/generic-stack-builder.nix { };
+  buildStackProject = pkgs.callPackage ../development/haskell-modules/generic-stack-builder.nix { };
 
   triggerRebuild = drv: i: overrideCabal drv (drv: { postUnpack = ": trigger rebuild ${toString i}"; });