diff --git a/packages/reactivity/src/dep.ts b/packages/reactivity/src/dep.ts
index 4ce73ac9954..bb2362e428b 100644
--- a/packages/reactivity/src/dep.ts
+++ b/packages/reactivity/src/dep.ts
@@ -145,7 +145,7 @@ export class Dep {
           }
         }
       }
-      for (let link = this.subs; link; link = link.prevSub) {
+      for (let link = this.subsHead; link; link = link.nextSub) {
         link.sub.notify()
       }
     } finally {