diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
index 470a944fa93..8165f1129d2 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -283,4 +283,7 @@ self: super: {
   HLearn-distributions = dontDistribute super.HLearn-distributions;
   HLearn-classification = dontDistribute super.HLearn-classification;
 
+  # Won't work with LLVM 3.5.
+  llvm-general = markBrokenVersion "3.4.5.3" super.llvm-general;
+
 }
diff --git a/pkgs/development/haskell-modules/configuration-ghc-head.nix b/pkgs/development/haskell-modules/configuration-ghc-head.nix
index 291f050e174..73da57d7350 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-head.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-head.nix
@@ -81,4 +81,7 @@ self: super: {
   # The compat library is empty in the presence of mtl 2.2.x.
   mtl-compat = dontHaddock super.mtl-compat;
 
+  # Won't work with LLVM 3.5.
+  llvm-general = markBrokenVersion "3.4.5.3" super.llvm-general;
+
 }