diff --git a/src/ban.rs b/src/ban.rs
index 9ce904f..9f759f5 100644
--- a/src/ban.rs
+++ b/src/ban.rs
@@ -28,6 +28,7 @@ impl Ban {
         self.index.len()
     }
 
+    /// * returns removed `Item` details
     pub fn update(&mut self, time: DateTime<Local>) -> Vec<Item> {
         let mut b = Vec::with_capacity(self.index.len());
         self.index.retain(|i, &mut expires| {