diff --git a/src/store/fst.rs b/src/store/fst.rs
index 5b3d378..fd7ea6e 100644
--- a/src/store/fst.rs
+++ b/src/store/fst.rs
@@ -687,7 +687,7 @@ impl StoreFSTPool {
                                 );
 
                                 // Proceed temporary FST to final FST path rename
-                                if std::fs::rename(&bucket_tmp_path, &bucket_final_path).is_ok() {
+                                if fs::rename(&bucket_tmp_path, &bucket_final_path).is_ok() {
                                     info!("done consolidate fst at path: {:?}", bucket_final_path);
                                 } else {
                                     error!(
diff --git a/src/store/generic.rs b/src/store/generic.rs
index 70dd27d..3d00c79 100644
--- a/src/store/generic.rs
+++ b/src/store/generic.rs
@@ -11,8 +11,6 @@ use std::fmt::Display;
 use std::sync::{Arc, RwLock};
 use std::time::{Duration, SystemTime};
 
-pub trait StoreGenericKey {}
-
 pub trait StoreGeneric {
     fn ref_last_used(&self) -> &RwLock<SystemTime>;
 }