1 files changed, 2 insertions, 0 deletions
diff --git a/universal.c b/universal.c
index 383feaae00..a7c480f52c 100644
--- a/universal.c
+++ b/universal.c
@@ -164,6 +164,8 @@ Perl_sv_derived_from_pvn(pTHX_ SV *sv, const char *const name, const STRLEN len,
     }
     else {
         stash = gv_stashsv(sv, 0);
+        if (!stash)
+            stash = gv_stashpv("UNIVERSAL", 0);
     }
 
     return stash ? isa_lookup(stash, name, len, flags) : FALSE;