diff --git a/haskell-gi-base.cabal b/haskell-gi-base.cabal
--- a/haskell-gi-base.cabal
+++ b/haskell-gi-base.cabal
@@ -1,5 +1,5 @@
 name:                haskell-gi-base
-version:             0.18.1
+version:             0.18.2
 synopsis:            Foundation for libraries generated by haskell-gi
 description:         Foundation for libraries generated by haskell-gi
 homepage:            https://github.com/haskell-gi/haskell-gi-base
diff --git a/src/Data/GI/Base/Attributes.hs b/src/Data/GI/Base/Attributes.hs
--- a/src/Data/GI/Base/Attributes.hs
+++ b/src/Data/GI/Base/Attributes.hs
@@ -124,6 +124,7 @@
   AttrOpTag(..),
 
   AttrOp(..),
+  AttrOpAllowed,
 
   AttrGetC,
   AttrSetC,
diff --git a/src/Data/GI/Base/GType.hsc b/src/Data/GI/Base/GType.hsc
--- a/src/Data/GI/Base/GType.hsc
+++ b/src/Data/GI/Base/GType.hsc
@@ -25,7 +25,7 @@
     , gtypeInvalid
     ) where
 
-import Data.Word (Word64)
+import Data.Word
 import Foreign.C.String (CString, peekCString)
 
 #include <glib-object.h>