diff --git a/engine.c b/engine.c
--- a/engine.c
+++ b/engine.c
@@ -811,7 +811,7 @@ void SetCustomEngineName(EngineID engine
 	_engine_custom_names[engine] = strdup(name);
 }
 
-void UnInitNewgrEngines(void)
+void UnloadCustomEngineNames(void)
 {
 	char **i;
 	for (i = _engine_custom_names; i != endof(_engine_custom_names); i++) {
diff --git a/engine.h b/engine.h
--- a/engine.h
+++ b/engine.h
@@ -212,7 +212,6 @@ void LoadCustomEngineNames(void);
 void DeleteCustomEngineNames(void);
 
 bool IsEngineBuildable(uint engine, byte type);
-void UnInitNewgrEngines(void);
 
 enum {
 	NUM_NORMAL_RAIL_ENGINES = 54,
@@ -283,5 +282,6 @@ static inline const RoadVehicleInfo* Roa
 
 void UnloadWagonOverrides(void);
 void UnloadCustomEngineSprites(void);
+void UnloadCustomEngineNames(void);
 
 #endif /* ENGINE_H */
diff --git a/newgrf.c b/newgrf.c
--- a/newgrf.c
+++ b/newgrf.c
@@ -2455,6 +2455,7 @@ static void ResetNewGRFData(void)
 	// Unload sprite group data
 	UnloadWagonOverrides();
 	UnloadCustomEngineSprites();
+	UnloadCustomEngineNames();
 
 	// Reset price base data
 	ResetPriceBaseMultipliers();
diff --git a/openttd.c b/openttd.c
--- a/openttd.c
+++ b/openttd.c
@@ -255,7 +255,6 @@ static void UnInitializeDynamicVariables
 static void UnInitializeGame(void)
 {
 	UnInitWindowSystem();
-	UnInitNewgrEngines();
 
 	free(_config_file);
 }