1 files changed, 1 insertions, 1 deletions
diff --git a/iseq.c b/iseq.c
index d97206eac8..a239830422 100644
--- a/iseq.c
+++ b/iseq.c
@@ -197,7 +197,7 @@ prepare_iseq_build(rb_iseq_t *iseq,
 	extern VALUE rb_vm_get_coverages(void);
 	VALUE coverages = rb_vm_get_coverages();
 	if (RTEST(coverages)) {
-	    iseq->coverage = rb_hash_aref(coverages, filename);
+	    iseq->coverage = rb_hash_lookup(coverages, filename);
 	    if (NIL_P(iseq->coverage)) iseq->coverage = Qfalse;
 	}
     }