diff --git a/themes/lucentui/views/components/dropdown.blade.php b/themes/lucentui/views/components/dropdown.blade.php
index f4867edb1..98eb0242d 100644
--- a/themes/lucentui/views/components/dropdown.blade.php
+++ b/themes/lucentui/views/components/dropdown.blade.php
@@ -3,6 +3,7 @@
         activeIndex = -1;
         $nextTick(() => {
             let dropdown = $refs.dropdown;
+            dropdown.style.left = '';
             let rect = dropdown.getBoundingClientRect();
             let windowWidth = window.innerWidth;
             dropdown.style.left = rect.right > windowWidth ? `-${rect.width - 40}px` : '0';