--- a/eric6/Debugger/VariablesViewer.py	Sat Sep 21 13:03:17 2019 +0200
+++ b/eric6/Debugger/VariablesViewer.py	Sat Sep 21 13:37:58 2019 +0200
@@ -1196,8 +1196,8 @@
         """
         Private method to open the configuration dialog.
         """
-        e5App().getObject("UserInterface")\
-            .showPreferences("debuggerGeneralPage")
+        e5App().getObject("UserInterface").showPreferences(
+            "debuggerGeneralPage")
     
     def __configureFilter(self):
         """