1 files changed, 2 insertions, 0 deletions
diff --git a/gc.c b/gc.c
index c083fbb297..adb86b10a5 100644
--- a/gc.c
+++ b/gc.c
@@ -7918,6 +7918,8 @@ gc_ref_update_imemo(rb_objspace_t *objspace, VALUE obj)
         rb_iseq_update_references((rb_iseq_t *)obj);
         break;
       case imemo_ast:
+        rb_ast_update_references((rb_ast_t *)obj);
+        break;
       case imemo_parser_strterm:
       case imemo_tmpbuf:
         break;