diff --git a/src/main/frontend/handler/editor.cljs b/src/main/frontend/handler/editor.cljs
index 0575282205..4fa678342e 100644
--- a/src/main/frontend/handler/editor.cljs
+++ b/src/main/frontend/handler/editor.cljs
@@ -2363,6 +2363,7 @@
   [e]
   (cut-blocks-and-clear-selections! false))
 
+;; credits to @pengx17
 (defn- copy-current-block-ref
   []
   (when-let [current-block (state/get-edit-block)]