diff --git a/charts.py b/charts.py
index 1b27cc2..69f0afa 100644
--- a/charts.py
+++ b/charts.py
@@ -256,7 +256,7 @@ def main(*args):
                 force_reload = True
             else:
                 pass
-                genFactory.handleArg(arg)
+                genFactory.handle_arg(arg)
 
         if not gen:
             gen = genFactory.getCombinedGenerator()