diff --git a/lalrpop-test/src/main.rs b/lalrpop-test/src/main.rs
index 4a097f8..3481d0f 100644
--- a/lalrpop-test/src/main.rs
+++ b/lalrpop-test/src/main.rs
@@ -401,6 +401,10 @@ fn issue_55_test1() {
 #[test]
 fn unit_test1() {
     assert!(unit::parse_Expr("3 + 4 * 5").is_ok());
+}
+
+#[test]
+fn unit_test2() {
     assert!(unit::parse_Expr("3 + +").is_err());
 }