diff --git a/leksah-server.cabal b/leksah-server.cabal
--- a/leksah-server.cabal
+++ b/leksah-server.cabal
@@ -1,5 +1,5 @@
 name: leksah-server
-version: 0.12.0.3
+version: 0.12.0.4
 cabal-version: >= 1.10.2
 build-type: Simple
 license: GPL
diff --git a/src/IDE/Core/CTypes.hs b/src/IDE/Core/CTypes.hs
--- a/src/IDE/Core/CTypes.hs
+++ b/src/IDE/Core/CTypes.hs
@@ -544,7 +544,7 @@
 
 instance NFData BS.ByteString where  rnf b = seq b ()
 
-#if !MIN_VERSION_ghc(7,3,0)
+#if !MIN_VERSION_deepseq(1,3,0)
 instance NFData Version where  rnf v = seq v ()
 #endif