1 files changed, 1 insertions, 0 deletions
diff --git a/iseq.c b/iseq.c
index 72f7f0c7bb..ac5a93b3de 100644
--- a/iseq.c
+++ b/iseq.c
@@ -249,6 +249,7 @@ prepare_iseq_build(rb_iseq_t *iseq,
     iseq->compile_data->storage_head->buff =
       (char *)(&iseq->compile_data->storage_head->buff + 1);
     iseq->compile_data->option = option;
+    iseq->compile_data->last_coverable_line = -1;
 
     set_relation(iseq, parent);