1 files changed, 1 insertions, 0 deletions
diff --git a/ext/strscan/strscan.c b/ext/strscan/strscan.c
index 838f0e7f86..75cff3716f 100644
--- a/ext/strscan/strscan.c
+++ b/ext/strscan/strscan.c
@@ -1034,6 +1034,7 @@ strscan_aref(VALUE self, VALUE idx)
             idx = rb_sym2str(idx);
             /* fall through */
         case T_STRING:
+            if (!p->regex) return Qnil;
             RSTRING_GETMEM(idx, name, i);
             i = name_to_backref_number(&(p->regs), p->regex, name, name + i, rb_enc_get(idx));
             break;