diff --git a/src/engine/sim_engine/pool.rs b/src/engine/sim_engine/pool.rs
index 9ef9714e2a2..0589a29cd3e 100644
--- a/src/engine/sim_engine/pool.rs
+++ b/src/engine/sim_engine/pool.rs
@@ -489,7 +489,7 @@ mod tests {
             .unwrap();
         let pool = engine.get_mut_pool(uuid).unwrap().1;
         let fs = pool.create_filesystems(uuid, pool_name, &[]).unwrap();
-        assert!(fs.changed().is_none())
+        assert!(!fs.is_changed())
     }
 
     #[test]
@@ -530,7 +530,7 @@ mod tests {
         let set_create_action = pool
             .create_filesystems(uuid, pool_name, &[(fs_name, None)])
             .unwrap();
-        assert!(set_create_action.changed().is_none());
+        assert!(!set_create_action.is_changed());
     }
 
     #[test]