diff --git a/src/XMonad/Core.hs b/src/XMonad/Core.hs
index ada47bb..2d88f89 100644
--- a/src/XMonad/Core.hs
+++ b/src/XMonad/Core.hs
@@ -73,7 +73,7 @@ data XState = XState
     , extensibleState  :: !(M.Map String (Either String StateExtension))
     -- ^ stores custom state information.
     --
-    -- The module "XMonad.Utils.ExtensibleState" in xmonad-contrib
+    -- The module "XMonad.Util.ExtensibleState" in xmonad-contrib
     -- provides additional information and a simple interface for using this.
     }