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-rw-r--r--ext/PerlIO/scalar/scalar.xs2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/PerlIO/scalar/scalar.xs b/ext/PerlIO/scalar/scalar.xs
index b26a238558..0d56ecc613 100644
--- a/ext/PerlIO/scalar/scalar.xs
+++ b/ext/PerlIO/scalar/scalar.xs
@@ -37,7 +37,7 @@ PerlIOScalar_pushed(pTHX_ PerlIO * f, const char *mode, SV * arg,
else {
s->var = newSVpvn("", 0);
}
- sv_upgrade(s->var, SVt_PV);
+ SvUPGRADE(s->var, SVt_PV);
code = PerlIOBase_pushed(aTHX_ f, mode, Nullsv, tab);
if ((PerlIOBase(f)->flags) & PERLIO_F_TRUNCATE)
SvCUR(s->var) = 0;