diff --git a/debian/control b/debian/control
index 5df7b0bb031682b9a44f252a15fc5bd5639f0b32..ea4485cf949fae10ca82b8611587eb39a502a6e1 100644
--- a/debian/control
+++ b/debian/control
@@ -1,7 +1,7 @@
 Source: haskell-cabal
 Priority: optional
 Maintainer: Isaac Jones <ijones@debian.org>
-Build-Depends: debhelper (>= 4.0.0), ghc6 (>= 6.2.2), ghc6 (<< 6.2.3)
+Build-Depends: debhelper (>= 4.0.0), ghc6 (>= 6.2.2), ghc6 (== 6.4)
 Standards-Version: 3.6.1
 Suggests: haddock, cpphs