diff --git a/trustify/client/configurator.py b/trustify/client/configurator.py
index 8cac370c9..dff615ae4 100644
--- a/trustify/client/configurator.py
+++ b/trustify/client/configurator.py
@@ -763,7 +763,7 @@ LogLevel warn \n\
             print e
             sys.exit(36)
 
-    def restart(quiet=False):
+    def restart(self, quiet=False):
         """
         Restarts apache server
         """