diff --git a/src/config/parser.rs b/src/config/parser.rs
index e98f20a..a29218a 100644
--- a/src/config/parser.rs
+++ b/src/config/parser.rs
@@ -244,6 +244,7 @@ Jump=Oh no\
         assert_eq!(unit.get_boolean("9"), None);
     }
 
+    #[test]
     fn test_time_span() {
         let mut config = Config::default();
         let res = parse_config(&mut config, "test.unit".to_string(), r"