diff --git a/src/gamelog.h b/src/gamelog.h
--- a/src/gamelog.h
+++ b/src/gamelog.h
@@ -48,7 +48,7 @@ bool GamelogTestEmergency();
 void GamelogRevision();
 void GamelogMode();
 void GamelogOldver();
-void GamelogSetting(const char *name, int32 oldval, int32 newval);
+void GamelogSetting(const std::string &name, int32 oldval, int32 newval);
 
 void GamelogGRFUpdate(const GRFConfig *oldg, const GRFConfig *newg);
 void GamelogGRFAddList(const GRFConfig *newg);