diff --git a/OpenRA.Mods.Common/UtilityCommands/UpgradeRules.cs b/OpenRA.Mods.Common/UtilityCommands/UpgradeRules.cs
index 595a0e11b1..f2e612b9dd 100644
--- a/OpenRA.Mods.Common/UtilityCommands/UpgradeRules.cs
+++ b/OpenRA.Mods.Common/UtilityCommands/UpgradeRules.cs
@@ -2810,9 +2810,12 @@ namespace OpenRA.Mods.Common.UtilityCommands
 				// Remove obsolete TransformOnPassenger trait.
 				if (engineVersion < 20160102)
 				{
-					node.Value.Nodes.RemoveAll(x => x.Key.Contains("TransformOnPassenger"));
-					Console.WriteLine("TransformOnPassenger has been removed.");
-					Console.WriteLine("Use the upgrades system to apply modifiers to the transport actor instead.");
+					var removed = node.Value.Nodes.RemoveAll(x => x.Key.Contains("TransformOnPassenger"));
+					if (removed > 0)
+					{
+						Console.WriteLine("TransformOnPassenger has been removed.");
+						Console.WriteLine("Use the upgrades system to apply modifiers to the transport actor instead.");
+					}
 				}
 
 				UpgradeActorRules(engineVersion, ref node.Value.Nodes, node, depth + 1);