--- a/newgrf_config.c	Wed Dec 13 22:38:45 2006 +0000
+++ b/newgrf_config.c	Thu Dec 14 15:14:29 2006 +0000
@@ -266,7 +266,7 @@
 
 
 /* Retrieve a NewGRF from the current config by its grfid */
-const GRFConfig *GetGRFConfig(uint32 grfid)
+GRFConfig *GetGRFConfig(uint32 grfid)
 {
 	GRFConfig *c;