diff --git a/.editorconfig b/.editorconfig
index 6d8ff330a5..07f87bfa59 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -141,6 +141,9 @@ dotnet_diagnostic.IDE0011.severity = silent
 # Object initialization can be simplified / Use object initializer.
 dotnet_diagnostic.IDE0017.severity = warning
 
+# Inline variable declaration.
+dotnet_diagnostic.IDE0018.severity = warning
+
 # Collection initialization can be simplified
 dotnet_diagnostic.IDE0028.severity = warning
 
diff --git a/OpenRA.Mods.Cnc/UtilityCommands/LegacyRulesImporter.cs b/OpenRA.Mods.Cnc/UtilityCommands/LegacyRulesImporter.cs
index 6541db6a32..386d7e0a23 100644
--- a/OpenRA.Mods.Cnc/UtilityCommands/LegacyRulesImporter.cs
+++ b/OpenRA.Mods.Cnc/UtilityCommands/LegacyRulesImporter.cs
@@ -151,10 +151,8 @@ namespace OpenRA.Mods.Cnc.UtilityCommands
 							Console.WriteLine("\t\tDimensions: " + dimensions.First() + "," + dimensions.Last());
 
 							Console.Write("\t\tFootprint:");
-							var width = 0;
-							int.TryParse(dimensions.First(), out width);
-							var height = 0;
-							int.TryParse(dimensions.Last(), out height);
+							int.TryParse(dimensions.First(), out var width);
+							int.TryParse(dimensions.Last(), out var height);
 							for (var y = 0; y < height; y++)
 							{
 								Console.Write(" ");