diff --git a/OpenRA.Mods.RA/Widgets/BuildPaletteWidget.cs b/OpenRA.Mods.RA/Widgets/BuildPaletteWidget.cs
index 57694c2711..7c8ad2ee4e 100755
--- a/OpenRA.Mods.RA/Widgets/BuildPaletteWidget.cs
+++ b/OpenRA.Mods.RA/Widgets/BuildPaletteWidget.cs
@@ -146,7 +146,7 @@ namespace OpenRA.Mods.RA.Widgets
 
 		public override bool HandleKeyPressInner(KeyInput e)
 		{
-			if (e.Event == KeyInputEvent.Up) return false;
+			if (e.Event == KeyInputEvent.Up || e.Modifiers != Modifiers.None) return false;
 
 			if (e.KeyChar == '\t')
 			{