diff --git a/package.json b/package.json
index 0b16fb75..6b23ec9d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "iview",
-    "version": "3.1.0",
+    "version": "3.1.1-rc.1",
     "title": "iView",
     "description": "A high quality UI components Library with Vue.js",
     "homepage": "http://www.iviewui.com",
diff --git a/src/components/base/popper.js b/src/components/base/popper.js
index e9f57718..cdbe6d8b 100644
--- a/src/components/base/popper.js
+++ b/src/components/base/popper.js
@@ -60,7 +60,7 @@ export default {
         },
         visible(val) {
             if (val) {
-                this.handleIndexIncrease();  // just use for Poptip
+                if (this.handleIndexIncrease) this.handleIndexIncrease();  // just use for Poptip
                 this.updatePopper();
                 this.$emit('on-popper-show');
             } else {