diff --git a/frontend/less/espo/custom.less b/frontend/less/espo/custom.less
index 61ed22c562..fccc91b519 100644
--- a/frontend/less/espo/custom.less
+++ b/frontend/less/espo/custom.less
@@ -844,6 +844,15 @@ input.global-search-input {
     }
 }
 
+#main > {
+    .list-container.list-container-panel {
+        > .list {
+            border-left-width: var(--panel-border-width);
+            border-right-width: var(--panel-border-width);
+        }
+    }
+}
+
 .none-value {
     user-select: none;
 }