diff --git a/res/themes/dark/css/_dark.scss b/res/themes/dark/css/_dark.scss
index f6f415ce70..a878aa3cdd 100644
--- a/res/themes/dark/css/_dark.scss
+++ b/res/themes/dark/css/_dark.scss
@@ -42,9 +42,6 @@ $preview-bar-bg-color: $header-panel-bg-color;
 $groupFilterPanel-bg-color: rgba(38, 39, 43, 0.82);
 $inverted-bg-color: $base-color;
 
-// used by RoomDropTarget
-$droptarget-bg-color: rgba(21,25,30,0.95);
-
 // used by AddressSelector
 $selected-color: $room-highlight-color;
 
diff --git a/res/themes/light/css/_light.scss b/res/themes/light/css/_light.scss
index ea7b0472e0..c92e491ca2 100644
--- a/res/themes/light/css/_light.scss
+++ b/res/themes/light/css/_light.scss
@@ -67,9 +67,6 @@ $groupFilterPanel-bg-color: rgba(232, 232, 232, 0.77);
 // used by RoomDirectory permissions
 $plinth-bg-color: $secondary-accent-color;
 
-// used by RoomDropTarget
-$droptarget-bg-color: rgba(255,255,255,0.95);
-
 // used by AddressSelector
 $selected-color: $secondary-accent-color;