diff --git a/foyer-storage/src/admission.rs b/foyer-storage/src/admission.rs
index f80cd3d3..b953a4f7 100644
--- a/foyer-storage/src/admission.rs
+++ b/foyer-storage/src/admission.rs
@@ -25,9 +25,15 @@ pub trait AdmissionPolicy: Send + Sync + 'static + Debug {
     fn judge(&self, key: &Self::Key, value: &Self::Value) -> bool;
 }
 
-#[derive(Debug, Default)]
+#[derive(Debug)]
 pub struct AdmitAll<K: Key, V: Value>(PhantomData<(K, V)>);
 
+impl<K: Key, V: Value> Default for AdmitAll<K, V> {
+    fn default() -> Self {
+        Self(PhantomData)
+    }
+}
+
 impl<K: Key, V: Value> AdmissionPolicy for AdmitAll<K, V> {
     type Key = K;
 
diff --git a/foyer-storage/src/reinsertion.rs b/foyer-storage/src/reinsertion.rs
index 96ca5b13..9928a86f 100644
--- a/foyer-storage/src/reinsertion.rs
+++ b/foyer-storage/src/reinsertion.rs
@@ -25,9 +25,15 @@ pub trait ReinsertionPolicy: Send + Sync + 'static + Clone + Debug {
     fn judge(&self, key: &Self::Key, value: &Self::Value) -> bool;
 }
 
-#[derive(Debug, Default)]
+#[derive(Debug)]
 pub struct ReinsertNone<K: Key, V: Value>(PhantomData<(K, V)>);
 
+impl<K: Key, V: Value> Default for ReinsertNone<K, V> {
+    fn default() -> Self {
+        Self(PhantomData)
+    }
+}
+
 impl<K: Key, V: Value> Clone for ReinsertNone<K, V> {
     fn clone(&self) -> Self {
         Self(PhantomData)