diff --git a/packages/vant/src/floating-bubble/index.ts b/packages/vant/src/floating-bubble/index.ts
index 6ce77ad7a..ed070b27f 100644
--- a/packages/vant/src/floating-bubble/index.ts
+++ b/packages/vant/src/floating-bubble/index.ts
@@ -15,6 +15,6 @@ export type {
 
 declare module 'vue' {
   export interface GlobalComponents {
-    FloatingBubble: typeof FloatingBubble;
+    VanFloatingBubble: typeof FloatingBubble;
   }
 }