diff --git a/addons/web_editor/static/src/scss/odoo-editor/powerbox.dark.scss b/addons/web_editor/static/src/scss/odoo-editor/powerbox.dark.scss
index 070a9f193d9..ffbe158059c 100644
--- a/addons/web_editor/static/src/scss/odoo-editor/powerbox.dark.scss
+++ b/addons/web_editor/static/src/scss/odoo-editor/powerbox.dark.scss
@@ -13,4 +13,7 @@
 
     --oePowerbox__commandImg-bg: #{$o-gray-400};
     --oePowerbox__commandImg-color: #{$o-gray-900};
+
+    --oePowerbox__ScrollbarThumb-background-color: #{$o-gray-400};
+    --oePowerbox__ScrollbarTrack-background-color: #{$o-gray-200};
 }