diff --git a/filed/src/files/mod.rs b/filed/src/files/mod.rs
index a2c21bd..e0dff4c 100644
--- a/filed/src/files/mod.rs
+++ b/filed/src/files/mod.rs
@@ -33,7 +33,7 @@ pub enum DeleteMode {
 
 impl File {
     pub fn expired(self: &Self) -> bool {
-        self.delete_at < chrono::Local::now()
+        self.delete_at > chrono::Local::now()
     }
 
     pub fn get_redis_key(self: &Self, prefix: String) -> String {