--- a/src/road_cmd.cpp	Mon Jun 18 14:40:07 2007 +0000
+++ b/src/road_cmd.cpp	Mon Jun 18 16:42:40 2007 +0000
@@ -704,7 +704,7 @@
 		/* try to remove the halves. */
 		if (bits != 0) {
 			ret = DoCommand(tile, rt << 4 | bits, 0, flags, CMD_REMOVE_ROAD);
-			if (!CmdFailed(ret)) cost += ret;
+			if (CmdSucceeded(ret)) cost += ret;
 		}
 
 		if (tile == end_tile) break;