diff --git a/packages/vue-use-fixed-header/src/useFixedHeader.ts b/packages/vue-use-fixed-header/src/useFixedHeader.ts
index 4207ec0..14c28f9 100644
--- a/packages/vue-use-fixed-header/src/useFixedHeader.ts
+++ b/packages/vue-use-fixed-header/src/useFixedHeader.ts
@@ -186,7 +186,7 @@ export function useFixedHeader(
             }
          }
 
-         prevTop = getScrollTop()
+         prevTop = scrollTop
       }
    }