diff --git a/SoObjects/SOGo/SOGoContentObject.m b/SoObjects/SOGo/SOGoContentObject.m
index 57c11f8cf..7ce7cc61a 100644
--- a/SoObjects/SOGo/SOGoContentObject.m
+++ b/SoObjects/SOGo/SOGoContentObject.m
@@ -20,6 +20,7 @@
 */
 
 #import <Foundation/NSArray.h>
+#import <Foundation/NSDictionary.h>
 #import <Foundation/NSString.h>
 #import <Foundation/NSValue.h>