diff --git a/train_cmd.c b/train_cmd.c
index 6a3947a3c9..2947f6fbc9 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -2564,6 +2564,7 @@ common:;
 			CheckTrainCollision(v);
 		}
 	}
+	return;
 
 invalid_rail:
 	/* We've reached end of line?? */