diff --git a/ui/src/components/app-table/index.vue b/ui/src/components/app-table/index.vue
index 302737e7b..4ce0b6253 100644
--- a/ui/src/components/app-table/index.vue
+++ b/ui/src/components/app-table/index.vue
@@ -94,9 +94,8 @@ const appTableRef = ref()
 const loading = ref(false)
 const showInput = ref(false)
 const inputValue = ref('')
-const tableHeight = ref(300)
-
-watch(showInput, (bool) => {
+const tableHeight = ref(null)
+watch(showInput, (bool: boolean) => {
   if (!bool) {
     inputValue.value = ''
   }