diff --git a/fbsync/fbsync.php b/fbsync/fbsync.php
index 14de4df25..bcd4e5a8d 100644
--- a/fbsync/fbsync.php
+++ b/fbsync/fbsync.php
@@ -278,10 +278,19 @@ function fbsync_createpost($a, $uid, $self, $contacts, $applications, $post, $cr
 	}
 
 	if ($contact_id <= 0) {
-		// To-Do:
-		// $contacts[$post->source_id] seems to be wrong by repeated posts
-		// must be changed in future
-		$contact_id = fbsync_fetch_contact($uid, $contacts[$post->source_id], $create_user);
+		if ($post->actor_id != $post->source_id) {
+			// Testing if we know the source or the actor
+			$contact_id = fbsync_fetch_contact($uid, $contacts[$post->source_id], false);
+
+			if (($contact_id == 0) and array_key_exists($post->actor_id, $contacts))
+				$contact_id = fbsync_fetch_contact($uid, $contacts[$post->actor_id], false);
+
+			// If we don't know anyone, we guess we should know the source. Could be the wrong decision
+			if ($contact_id == 0)
+				$contact_id = fbsync_fetch_contact($uid, $contacts[$post->source_id], $create_user);
+		} else
+			$contact_id = fbsync_fetch_contact($uid, $contacts[$post->source_id], $create_user);
+
 
 		if ($contact_id == -1) {
 			logger('fbsync_createpost: Contact is blocked. Post not imported '.print_r($post, true), LOGGER_DEBUG);