diff --git a/ios/sdk/WeexSDK/Sources/Utility/WXUtility.h b/ios/sdk/WeexSDK/Sources/Utility/WXUtility.h
index c9be37a794..71c77d5fe0 100644
--- a/ios/sdk/WeexSDK/Sources/Utility/WXUtility.h
+++ b/ios/sdk/WeexSDK/Sources/Utility/WXUtility.h
@@ -77,6 +77,7 @@ do {\
         WX_ENUMBER_CASE(_invocation, idx, _C_FLT, _obj, float, floatValue, _ppFree)\
         WX_ENUMBER_CASE(_invocation, idx, _C_DBL, _obj, double, doubleValue, _ppFree)\
         WX_ENUMBER_CASE(_invocation, idx, _C_BOOL, _obj, bool, boolValue, _ppFree)\
+        WX_ENUMBER_CASE(_invocation, idx, _C_CHR, _obj, char, charValue, _ppFree)\
         default: { [_invocation setArgument:&_obj atIndex:(idx) + 2]; *(_ppFree + idx) = 0; break;}\
     }\
 }while(0)