diff --git a/ChangeLog b/ChangeLog
index d91482fbd..08f86c542 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2009-12-02  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* SoObjects/SOGo/SOGoSource.h: added new "SOGoDNSource" protocol
+	as a child protocol of "SOGoSource".
+
 	* SoObjects/SOGo/SOGoUserManager.m: added new
 	"SOGoUserManagerRegistry" class that handles the mapping between
 	source types and their corresponding classes.
diff --git a/SoObjects/SOGo/LDAPSource.h b/SoObjects/SOGo/LDAPSource.h
index 796f17d0a..0f3cfa34a 100644
--- a/SoObjects/SOGo/LDAPSource.h
+++ b/SoObjects/SOGo/LDAPSource.h
@@ -32,7 +32,7 @@
 @class NGLdapConnection;
 @class NGLdapEntry;
 
-@interface LDAPSource : NSObject <SOGoSource>
+@interface LDAPSource : NSObject <SOGoDNSource>
 {
   int queryLimit;
   int queryTimeout;
@@ -76,15 +76,11 @@
      IMAPHostField: (NSString *) newIMAPHostField
      andBindFields: (NSString *) newBindFields;
 
-- (NSString *) lookupLoginByDN: (NSString *) theDN;
-
 - (NGLdapEntry *) lookupGroupEntryByUID: (NSString *) theUID;
 - (NGLdapEntry *) lookupGroupEntryByEmail: (NSString *) theEmail;
 - (NGLdapEntry *) lookupGroupEntryByAttribute: (NSString *) theAttribute 
 				     andValue: (NSString *) theValue;
 
-- (NSString *) baseDN;
-
 @end
 
 #endif /* LDAPSOURCE_H */
diff --git a/SoObjects/SOGo/SOGoSource.h b/SoObjects/SOGo/SOGoSource.h
index c831ee91d..3c1495a07 100644
--- a/SoObjects/SOGo/SOGoSource.h
+++ b/SoObjects/SOGo/SOGoSource.h
@@ -50,4 +50,11 @@
 
 @end
 
+@protocol SOGoDNSource <SOGoSource>
+
+- (NSString *) lookupLoginByDN: (NSString *) theDN;
+- (NSString *) baseDN;
+
+@end
+
 #endif /* SOGOSOURCE_H */