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-rw-r--r--Modules/_tkinter.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index b898249..48e7ceb 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -636,7 +636,7 @@ Tkapp_New(char *screenName, char *baseName, char *className,
}
strcpy(argv0, className);
- if (isupper(Py_CHARMASK((argv0[0]))))
+ if (isupper(Py_CHARMASK(argv0[0])))
argv0[0] = tolower(argv0[0]);
Tcl_SetVar(v->interp, "argv0", argv0, TCL_GLOBAL_ONLY);
ckfree(argv0);