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 aad72ad1c122..db3cb7bd3ce7 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -82,7 +82,7 @@ self: super: {
 
   # haddock: No input file(s).
   nats = dontHaddock super.nats;
-  bytestring-builder = dontHaddock super.bytestring-builder;
+  bytestring-builder = dontHaddock (triggerRebuild super.bytestring-builder 1);
 
   # We have time 1.5
   aeson = disableCabalFlag super.aeson "old-locale";