diff --git a/components/anchor/AnchorLink.jsx b/components/anchor/AnchorLink.jsx
index 6410a2a28..f1e3836fa 100644
--- a/components/anchor/AnchorLink.jsx
+++ b/components/anchor/AnchorLink.jsx
@@ -21,8 +21,10 @@ export default {
   },
   watch: {
     href(val, oldVal) {
-      this.antAnchor.unregisterLink(oldVal);
-      this.antAnchor.registerLink(val);
+      this.$nextTick(() => {
+        this.antAnchor.unregisterLink(oldVal);
+        this.antAnchor.registerLink(val);
+      });
     },
   },
 
diff --git a/components/avatar/Avatar.jsx b/components/avatar/Avatar.jsx
index e02abe4d8..a40aa1aa5 100644
--- a/components/avatar/Avatar.jsx
+++ b/components/avatar/Avatar.jsx
@@ -6,7 +6,7 @@ export default {
   props: {
     prefixCls: {
       type: String,
-      default: 'ant-avatar',
+      default: undefined,
     },
     shape: {
       validator: val => ['circle', 'square'].includes(val),
@@ -36,8 +36,12 @@ export default {
   },
   watch: {
     src() {
-      this.isImgExist = true;
-      this.scale = 1;
+      this.$nextTick(() => {
+        this.isImgExist = true;
+        this.scale = 1;
+        // force uodate for position
+        this.$forceUpdate();
+      });
     },
   },
   mounted() {