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-rw-r--r--Modules/cgensupport.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Modules/cgensupport.c b/Modules/cgensupport.c
index b24c80a..a3023eb 100644
--- a/Modules/cgensupport.c
+++ b/Modules/cgensupport.c
@@ -171,7 +171,7 @@ getistringarg(args, nargs, i, p_arg)
{
object *v;
if (!getiobjectarg(args, nargs, i, &v))
- return NULL;
+ return 0;
if (!is_stringobject(v)) {
return err_badarg();
}