diff --git a/Formula/purescript.rb b/Formula/purescript.rb
index 9749263919..93c20a9a24 100644
--- a/Formula/purescript.rb
+++ b/Formula/purescript.rb
@@ -32,7 +32,7 @@ class Purescript < Formula
         mv "purescript-#{version}/purescript.cabal", "."
       end
 
-      install_cabal_package "-f release", :using => ["alex", "happy"]
+      install_cabal_package "-f", "release", :using => ["alex", "happy"]
     end
   end