diff --git a/mogenerator.m b/mogenerator.m
index f0adc224..6c623681 100644
--- a/mogenerator.m
+++ b/mogenerator.m
@@ -31,6 +31,7 @@ - (NSDictionary *)fetchedPropertiesByName
 @end
 
 @interface NSEntityDescription (userInfoAdditions)
+- (BOOL)hasUserInfoKeys;
 - (NSDictionary *)userInfoByKeys;
 @end