diff --git a/javascript-extras.cabal b/javascript-extras.cabal
--- a/javascript-extras.cabal
+++ b/javascript-extras.cabal
@@ -1,5 +1,5 @@
 name:                javascript-extras
-version:             0.2.0.1
+version:             0.2.0.2
 synopsis:            Extra javascript functions when using GHCJS
 description:         Extra javascript functions when using GHCJS
 homepage:            https://github.com/louispan/javascript-extras#readme
diff --git a/src/JavaScript/Extras/Number.hs b/src/JavaScript/Extras/Number.hs
--- a/src/JavaScript/Extras/Number.hs
+++ b/src/JavaScript/Extras/Number.hs
@@ -11,7 +11,7 @@
 
 foreign import javascript unsafe
   "Number.MAX_SAFE_INTEGER"
-  js_maxSafeInteger :: Int64
+  js_maxSafeInteger :: Int
 
 #else