diff --git a/frontend/less/light/custom.less b/frontend/less/light/custom.less
index 1918801e78..ed9c2f12ca 100644
--- a/frontend/less/light/custom.less
+++ b/frontend/less/light/custom.less
@@ -20,6 +20,10 @@ body[data-navbar="top"] {
 body[data-navbar="side"] {
     #navbar > .navbar {
         border-right: var(--panel-border-width) solid var(--default-border-color);
+
+        .minimizer {
+            color: var(--text-gray-color) !important;
+        }
     }
 }