diff --git a/src/chat_control.py b/src/chat_control.py
index 8a028e9ee..c36bc01e9 100644
--- a/src/chat_control.py
+++ b/src/chat_control.py
@@ -1572,10 +1572,13 @@ class ChatControl(ChatControlBase):
 			authenticated_string = _('and NOT authenticated')
 			self.lock_image.set_from_file(os.path.join(gajim.DATA_DIR, 'pixmaps', 'security-low.png'))
 
+		#status will become 'is' or 'is not', authentificaed will become
+		#'and authentificated' or 'and not authentificated', logged will become
+		#'will' or 'will not'
 		tooltip = _('%(type)s encryption %(status)s active %(authenticated)s.\n'
-			'Your chat session %(logged)s be logged.'\
-			% {'type': enc_type, 'status': status_string,
-			'authenticated': authenticated_string, 'logged': logged_string})
+			'Your chat session %(logged)s be logged.') % {'type': enc_type,
+			'status': status_string, 'authenticated': authenticated_string,
+			'logged': logged_string}
 
 		self.lock_tooltip.set_tip(self.authentication_button, tooltip)
 		self.widget_set_visible(self.authentication_button, not visible)