1 files changed, 1 insertions, 1 deletions
diff --git a/compile.c b/compile.c
index 615200b30e..f2746eb0a4 100644
--- a/compile.c
+++ b/compile.c
@@ -2014,7 +2014,7 @@ iseq_set_use_block(rb_iseq_t *iseq)
 
         if (!rb_warning_category_enabled_p(RB_WARN_CATEGORY_STRICT_UNUSED_BLOCK)) {
             st_data_t key = (st_data_t)rb_intern_str(body->location.label); // String -> ID
-            st_insert(vm->unused_block_warning_table, key, 1);
+            set_insert(vm->unused_block_warning_table, key);
         }
     }
 }