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 8c8498b7a13..87b1d34f7ed 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -268,4 +268,7 @@ self: super: {
   # https://github.com/haskell/haddock/issues/427
   haddock = dontCheck super.haddock;
 
+  # The tests in vty-ui do not build, but vty-ui itself builds.
+  vty-ui = enableCabalFlag super.vty-ui "no-tests";
+
 }