diff --git a/SoObjects/SOGo/SOGoFolder.h b/SoObjects/SOGo/SOGoFolder.h
index afb55cfc5..2e02a9f3f 100644
--- a/SoObjects/SOGo/SOGoFolder.h
+++ b/SoObjects/SOGo/SOGoFolder.h
@@ -40,6 +40,7 @@
 
 /* dav */
 - (NSArray *) davNamespaces;
+- (NSArray *) davResourceType;
 
 /* outlook */
 - (NSString *) outlookFolderClass;