diff --git a/client/components/combobox.less b/client/components/combobox.less
index 813ac5481..42011fc3b 100644
--- a/client/components/combobox.less
+++ b/client/components/combobox.less
@@ -11,7 +11,7 @@
         width: 100%;
         border: 1px solid gray;
         overflow-y: scroll;
-        height: 200px;
+        max-height: 200px;
         .item {
             position:relative;
             font-size: 14px;