diff --git a/src/pickledb.rs b/src/pickledb.rs
index 68f4a47..d8ed3d0 100644
--- a/src/pickledb.rs
+++ b/src/pickledb.rs
@@ -550,14 +550,8 @@ impl PickleDb {
     ///
     pub fn get_all(&self) -> Vec<String> {
         [
-            self.map
-                .iter()
-                .map(|(key, _)| key.clone())
-                .collect::<Vec<String>>(),
-            self.list_map
-                .iter()
-                .map(|(key, _)| key.clone())
-                .collect::<Vec<String>>(),
+            self.map.keys().cloned().collect::<Vec<String>>(),
+            self.list_map.keys().cloned().collect::<Vec<String>>(),
         ]
         .concat()
     }