Avoid potentially empty struct.

[p5sagit/p5-mst-13.2.git] / sv.h

diff --git a/sv.h b/sv.h
index 92dec20..6f95c46 100644 (file)
--- a/sv.h
+++ b/sv.h
@@ -174,7 +174,7 @@ perform the upgrade if necessary.  See C<svtype>.
 #  endif
 #endif
 
-#define SvREFCNT_dec(sv)       sv_free((SV*)sv)
+#define SvREFCNT_dec(sv)       sv_free((SV*)(sv))
 
 #define SVTYPEMASK     0xff
 #define SvTYPE(sv)     ((sv)->sv_flags & SVTYPEMASK)