diff --git a/packages/floating-vue/src/components/Popper.ts b/packages/floating-vue/src/components/Popper.ts
index 052f275d..f7c4222b 100644
--- a/packages/floating-vue/src/components/Popper.ts
+++ b/packages/floating-vue/src/components/Popper.ts
@@ -868,7 +868,10 @@ export default () => defineComponent({
         throw new Error('No container for popover: ' + this.container)
       }
 
-      container.appendChild(this.$_popperNode)
+      if (!container.contains(this.$_popperNode)) {
+        container.appendChild(this.$_popperNode)
+      }
+
       this.isMounted = true
     },