diff --git a/frontend/less/dark/variables.less b/frontend/less/dark/variables.less
index fe96fb76b2..f2f9a0df67 100644
--- a/frontend/less/dark/variables.less
+++ b/frontend/less/dark/variables.less
@@ -124,7 +124,7 @@
 
 @blockquote-border-color-value: @gray-value;
 
-@scroll-bg-value: transparent;
+@scroll-bg-value: @body-bg-value;
 @scroll-thumb-bg-value: @btn-default-bg-value;
 
 @collapsed-modal-bg-value: @dropdown-bg-value;