diff --git a/src/less/base/layer/layer.popover.less b/src/less/base/layer/layer.popover.less
index 90a1c4ff5d..c455c980c3 100644
--- a/src/less/base/layer/layer.popover.less
+++ b/src/less/base/layer/layer.popover.less
@@ -11,7 +11,7 @@
         max-height: @maxHeight;
     }
 
-    .dynamic-height-limit-layout-small {
+    .dynamic-height-limit-layout-default {
         min-height: 500px;
         max-height: @maxHeight;
     }