--- a/src/train_cmd.cpp	Sun May 06 19:51:25 2007 +0000
+++ b/src/train_cmd.cpp	Sun May 06 19:58:34 2007 +0000
@@ -2026,7 +2026,6 @@
 		/* no smoke? */
 		if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
 				disable_effect ||
-				rvi->railtype > RAILTYPE_ELECTRIC ||
 				v->vehstatus & VS_HIDDEN) {
 			continue;
 		}