diff --git a/elisp/ghc-pkg.el b/elisp/ghc-pkg.el
index 79e57b886..47bbef354 100644
--- a/elisp/ghc-pkg.el
+++ b/elisp/ghc-pkg.el
@@ -2,4 +2,5 @@
   "ghc"
   2.0.0
   "Sub mode for Haskell mode"
-  '((haskell-mode "13.0")))
+  '((emacs "24.3")
+    (haskell-mode "13.0")))
diff --git a/elisp/ghc.el b/elisp/ghc.el
index 82c4fe52b..793289e14 100644
--- a/elisp/ghc.el
+++ b/elisp/ghc.el
@@ -30,7 +30,9 @@
 
 (defconst ghc-version "5.4.0.0")
 
-(defgroup ghc-mod '() "ghc-mod customization")
+(defgroup ghc-mod '()
+  "ghc-mod customization"
+  :group 'haskell)
 
 ;; (eval-when-compile
 ;;  (require 'haskell-mode))