diff --git a/QuickAnnotate.cabal b/QuickAnnotate.cabal
--- a/QuickAnnotate.cabal
+++ b/QuickAnnotate.cabal
@@ -1,5 +1,5 @@
 Name:                QuickAnnotate
-Version:             0.4
+Version:             0.5
 Synopsis:            Annotation Framework
 Homepage:            http://code.haskell.org/QuickAnnotate/
 License:             BSD3 
@@ -18,7 +18,7 @@
 Executable qapp
     Main-is: QuickAnnotate/Preprocessor.hs             
     Build-depends: base >= 4 && < 4.6,       
-                   haskell-src-exts >= 1.11.1 &&  < 1.12	
+                   haskell-src-exts >= 1.11.1 &&  < 1.14	
     Other-modules: Examples.TestPP       
    
 Library 
diff --git a/QuickAnnotate/Preprocessor.hs b/QuickAnnotate/Preprocessor.hs
--- a/QuickAnnotate/Preprocessor.hs
+++ b/QuickAnnotate/Preprocessor.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE PatternGuards #-}
 --module QuickAnnotate.Preprocessor  where
 
 import Language.Haskell.Exts