diff --git a/frontend/less/dark/variables.less b/frontend/less/dark/variables.less
index cbf008e75f..c10f4586bb 100644
--- a/frontend/less/dark/variables.less
+++ b/frontend/less/dark/variables.less
@@ -112,7 +112,7 @@
 
 @blockquote-border-color-value: @gray-value;
 
-@scroll-bg-value: #302f2f;
+@scroll-bg-value: transparent;
 @scroll-thumb-bg-value: @btn-default-bg-value;
 
 @collapsed-modal-bg-value: @dropdown-bg-value;