diff --git a/antdv-demo b/antdv-demo
index 8dca2d2cf..f9276815b 160000
--- a/antdv-demo
+++ b/antdv-demo
@@ -1 +1 @@
-Subproject commit 8dca2d2cfcaaf970f494ebfb65ee55dfca69870c
+Subproject commit f9276815b07efeec931404c2cad4e998eba7af14
diff --git a/components/_util/props-util.js b/components/_util/props-util.js
index 050f634d4..b91bd3619 100644
--- a/components/_util/props-util.js
+++ b/components/_util/props-util.js
@@ -69,7 +69,7 @@ const getSlot = (self, name = 'default', options = {}) => {
   return (
     (self.$scopedSlots && self.$scopedSlots[name] && self.$scopedSlots[name](options)) ||
     self.$slots[name] ||
-    []
+    undefined
   );
 };
 
diff --git a/components/vc-align/Align.jsx b/components/vc-align/Align.jsx
index d853a01d5..a1b6b877c 100644
--- a/components/vc-align/Align.jsx
+++ b/components/vc-align/Align.jsx
@@ -140,10 +140,10 @@ export default {
 
   render() {
     const { childrenProps } = this.$props;
-    const child = getSlot(this)[0];
+    const child = getSlot(this);
     if (child && childrenProps) {
-      return cloneElement(child, { props: childrenProps });
+      return cloneElement(child[0], { props: childrenProps });
     }
-    return child;
+    return child && child[0];
   },
 };
diff --git a/components/vc-cascader/Cascader.jsx b/components/vc-cascader/Cascader.jsx
index a290768c5..198abc12d 100644
--- a/components/vc-cascader/Cascader.jsx
+++ b/components/vc-cascader/Cascader.jsx
@@ -378,11 +378,11 @@ export default {
       },
       ref: 'trigger',
     };
-    const children = getSlot(this, 'default')[0];
+    const children = getSlot(this, 'default');
     return (
       <Trigger {...triggerProps}>
         {children &&
-          cloneElement(children, {
+          cloneElement(children[0], {
             on: {
               keydown: handleKeyDown,
             },