diff --git a/ui-ngx/src/app/shared/components/rule-chain/rule-chain-select.component.scss b/ui-ngx/src/app/shared/components/rule-chain/rule-chain-select.component.scss
index c69661ad76..9cbb97cba9 100644
--- a/ui-ngx/src/app/shared/components/rule-chain/rule-chain-select.component.scss
+++ b/ui-ngx/src/app/shared/components/rule-chain/rule-chain-select.component.scss
@@ -16,7 +16,10 @@
 :host {
   min-width: 52px;
   width: 100%;
-  padding: 0 6px;
+  padding: 0;
+  .tb-rule-select {
+    width: 100%;
+  }
   .tb-rule-chain-select {
     display: flex;
     min-height: 100%;