diff --git a/OpenChange/SOGoContactGCSEntry+MAPIStore.h b/OpenChange/SOGoContactGCSEntry+MAPIStore.h
index 145e455aa..54820ba2a 100644
--- a/OpenChange/SOGoContactGCSEntry+MAPIStore.h
+++ b/OpenChange/SOGoContactGCSEntry+MAPIStore.h
@@ -25,6 +25,8 @@
 
 #import <Contacts/SOGoContactGCSEntry.h>
 
+@class NSDictionary;
+
 @interface SOGoContactGCSEntry (MAPIStoreMessage)
 
 - (void) setMAPIProperties: (NSDictionary *) properties;