diff --git a/core/store/src/db.rs b/core/store/src/db.rs
index 7202f42a72b..3fc5d3871c5 100644
--- a/core/store/src/db.rs
+++ b/core/store/src/db.rs
@@ -593,6 +593,8 @@ mod tests {
     fn rocksdb_merge_sanity() {
         #[cfg(feature = "no_cache")]
         panic!("wrong feature2");
+        // #[cfg(feature = "single_thread_rocksdb")]
+        // panic!("wrong feature");
         let tmp_dir = tempfile::Builder::new().prefix("_test_snapshot_sanity").tempdir().unwrap();
         let store = create_store(tmp_dir.path().to_str().unwrap());
         assert_eq!(store.get(ColState, &[1]).unwrap(), None);