diff --git a/ChangeLog b/ChangeLog
index a2c13e9ab..30903b416 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+2007-10-23 Benny Malengier <benny.malengier@gramps-project.org>
+	* src/plugins/RelCalc.py: better comment, issue #1181
+
 2007-10-23 Benny Malengier <benny.malengier@gramps-project.org>
 	* src/Relationship.py: new algorithm to calculate relation
 	* src/plugins/all_relations.py: begin of quick report to show extended relationship.
diff --git a/src/plugins/RelCalc.py b/src/plugins/RelCalc.py
index e34c1efe9..3a8594d1a 100644
--- a/src/plugins/RelCalc.py
+++ b/src/plugins/RelCalc.py
@@ -157,8 +157,12 @@ class RelCalc(Tool.Tool, ManagedWindow.ManagedWindow):
             commontext = ""
         elif length == 1:
             person = self.db.get_person_from_handle(common[0])
-            name = name_displayer.display(person)
-            commontext = " " + _("Their common ancestor is %s.") % name
+            if common[0] == other_person.handle or \
+                    common[0] == self.person.handle :
+                commontext = ''
+            else :
+                name = name_displayer.display(person)
+                commontext = " " + _("Their common ancestor is %s.") % name
         elif length == 2:
             p1 = self.db.get_person_from_handle(common[0])
             p2 = self.db.get_person_from_handle(common[1])