diff --git a/frontend/less/dark-vertical/variables.less b/frontend/less/dark-vertical/variables.less
index a4623896a1..7b78c5695c 100644
--- a/frontend/less/dark-vertical/variables.less
+++ b/frontend/less/dark-vertical/variables.less
@@ -99,7 +99,7 @@
 @code-color-value: #a9a9a9;
 @code-border-color-value: #424242;
 
-@scroll-bg-value: @gray-dark-value;
+@scroll-bg-value: #302f2f;
 @scroll-thumb-bg-value: @btn-default-bg-value;
 
 @collapsed-modal-bg-value: @dropdown-bg-value;