diff --git a/packages/icon/index.wxs b/packages/icon/index.wxs
index 45e3aa0a..e29ecd0c 100644
--- a/packages/icon/index.wxs
+++ b/packages/icon/index.wxs
@@ -13,6 +13,10 @@ function rootClass(data) {
     classes.push(data.classPrefix);
   }
 
+  if (data.classPrefix !== 'van-icon') {
+    classes.push('van-icon')
+  }
+
   if (isImage(data.name)) {
     classes.push('van-icon--image');
   } else if (data.classPrefix != null) {