diff --git a/.editorconfig b/.editorconfig
index 647016dbb2..7fb38b7270 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1067,6 +1067,9 @@ dotnet_diagnostic.RCS1187.severity = warning
 # Join string expressions.
 dotnet_diagnostic.RCS1190.severity = warning
 
+# Declare enum value as combination of names.
+dotnet_diagnostic.RCS1191.severity = warning
+
 # Overriding member should not change 'params' modifier.
 dotnet_diagnostic.RCS1193.severity = warning
 
diff --git a/OpenRA.Mods.D2k/Traits/World/D2kResourceRenderer.cs b/OpenRA.Mods.D2k/Traits/World/D2kResourceRenderer.cs
index 53c21b4287..b649817f48 100644
--- a/OpenRA.Mods.D2k/Traits/World/D2kResourceRenderer.cs
+++ b/OpenRA.Mods.D2k/Traits/World/D2kResourceRenderer.cs
@@ -39,7 +39,7 @@ namespace OpenRA.Mods.D2k.Traits
 			BottomLeft = 0x40,
 			BottomRight = 0x80,
 
-			All = 0xFF
+			All = Left | Top | Right | Bottom | TopLeft | TopRight | BottomLeft | BottomRight
 		}
 
 		public static readonly Dictionary<ClearSides, int> SpriteMap = new()