diff --git a/openstackclient/shell.py b/openstackclient/shell.py
index 5b4939a217..c84e2b1d40 100644
--- a/openstackclient/shell.py
+++ b/openstackclient/shell.py
@@ -116,7 +116,7 @@ class OpenStackShell(app.App):
             if not logging.getLogger('').handlers:
                 logging.basicConfig()
             if self.dump_stack_trace:
-                self.log.error(traceback.format_exc(e))
+                self.log.error(traceback.format_exc())
             else:
                 self.log.error('Exception raised: ' + str(e))