--- a/newgrf.c	Sun Dec 18 12:17:53 2005 +0000
+++ b/newgrf.c	Sun Dec 18 14:03:28 2005 +0000
@@ -2455,6 +2455,7 @@
 	// Unload sprite group data
 	UnloadWagonOverrides();
 	UnloadCustomEngineSprites();
+	UnloadCustomEngineNames();
 
 	// Reset price base data
 	ResetPriceBaseMultipliers();