diff --git a/pkgs/development/libraries/haskell/yesod-static/default.nix b/pkgs/development/libraries/haskell/yesod-static/default.nix
index d7e9498c968..8fffccd649a 100644
--- a/pkgs/development/libraries/haskell/yesod-static/default.nix
+++ b/pkgs/development/libraries/haskell/yesod-static/default.nix
@@ -12,6 +12,9 @@ cabal.mkDerivation (self: {
     httpTypes systemFilepath text transformers unixCompat wai
     waiAppStatic yesodCore
   ];
+  patchPhase = ''
+    sed -i yesod-static.cabal -e 's|, base64-bytestring.*|, base64-bytestring|'
+  '';
   meta = {
     homepage = "http://www.yesodweb.com/";
     description = "Static file serving subsite for Yesod Web Framework";