--- a/eric6/DebugClients/Python/DebugUtilities.py	Sat Apr 10 17:54:58 2021 +0200
+++ b/eric6/DebugClients/Python/DebugUtilities.py	Sat Apr 10 18:31:17 2021 +0200
@@ -80,7 +80,7 @@
     varargs = None
     if co.co_flags & CO_VARARGS:
         varargs = co.co_varnames[nargs]
-        nargs = nargs + 1
+        nargs += 1
     varkw = None
     if co.co_flags & CO_VARKEYWORDS:
         varkw = co.co_varnames[nargs]