diff --git a/mk/config.mk.in b/mk/config.mk.in
index 8506d50e35c68da3d476629fe933d86279ba3f6a..025a94e6c3525a151766c93dc6378e942479e2a6 100644
--- a/mk/config.mk.in
+++ b/mk/config.mk.in
@@ -286,6 +286,9 @@ HsLibHcOpts=$(GhcLibHcOpts)
 #
 #################################################################################
 
+# The compiler you'd like to use to compile Happy
+WithHappyHc = ghc-0.29
+
 # HappyHcOpts gives the flags to pass to the Haskell compiler used
 # 	      to compile the Happy source coed
 HappyHcOpts =