diff --git a/src/components/modal/modal.js b/src/components/modal/modal.js
index 27e626ae5f3..a36f63e15a7 100644
--- a/src/components/modal/modal.js
+++ b/src/components/modal/modal.js
@@ -520,9 +520,9 @@ export default {
       const count = incrementModalOpenCount()
       if (count === 1) {
         this.setScrollbar()
+        this.setModalOpenClass(true)
       }
       this.adjustDialog()
-      this.setModalOpenClass(true)
       this.setResizeEvent(true)
     },
     onEnter() {