1 files changed, 2 insertions, 1 deletions
diff --git a/universal.c b/universal.c
index 5ccd731a70..18989aaf02 100644
--- a/universal.c
+++ b/universal.c
@@ -47,7 +47,8 @@ isa_lookup(HV *stash, char *name, int len, int level)
 	}
 	if(hv) {
 	    SV** svp = AvARRAY(av);
-	    I32 items = AvFILL(av) + 1;
+	    /* NOTE: No support for tied ISA */
+	    I32 items = AvFILLp(av) + 1;
 	    while (items--) {
 		SV* sv = *svp++;
 		HV* basestash = gv_stashsv(sv, FALSE);