Index: src/tunnelbridge_cmd.cpp
===================================================================
--- src/tunnelbridge_cmd.cpp	(Revision 20902)
+++ src/tunnelbridge_cmd.cpp	(Arbeitskopie)
@@ -890,7 +890,7 @@
  * @param overlay do we want to still see the road?
  * @param head    are we drawing bridge head?
  */
-static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
+static void DrawBridgeTramBits(int x, int y, int z, int offset, bool overlay, bool head)
 {
 	static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
 	static const SpriteID back_offsets[6]    =   {  95,  96,  99, 102, 100, 101 };