diff --git a/core/src/raw/adapters/mod.rs b/core/src/raw/adapters/mod.rs
index 73dc67bf6882..c5a631346402 100644
--- a/core/src/raw/adapters/mod.rs
+++ b/core/src/raw/adapters/mod.rs
@@ -44,7 +44,7 @@
 //! # Available Adapters
 //!
 //! - [`kv::Adapter`]: Adapter for Key Value Services like `redis`.
-//! - [`typed_kv::Adapter`]: Adapter key key value services that in-memory.
+//! - [`typed_kv::Adapter`]: Adapter key value services that in-memory.
 
 pub mod kv;
 pub mod typed_kv;
diff --git a/core/src/raw/adapters/typed_kv/backend.rs b/core/src/raw/adapters/typed_kv/backend.rs
index 357f9b55f2e3..8f56a061168b 100644
--- a/core/src/raw/adapters/typed_kv/backend.rs
+++ b/core/src/raw/adapters/typed_kv/backend.rs
@@ -32,7 +32,7 @@ use crate::raw::oio::HierarchyLister;
 use crate::raw::*;
 use crate::*;
 
-/// The typed kv backend which implements Accessor for for typed kv adapter.
+/// The typed kv backend which implements Accessor for typed kv adapter.
 #[derive(Debug, Clone)]
 pub struct Backend<S: Adapter> {
     kv: Arc<S>,
diff --git a/core/src/types/metadata.rs b/core/src/types/metadata.rs
index 5514d0dc10c4..0ba47b78b124 100644
--- a/core/src/types/metadata.rs
+++ b/core/src/types/metadata.rs
@@ -547,7 +547,7 @@ flags! {
         ContentType,
         /// Key for etag.
         Etag,
-        /// Key for last last modified.
+        /// Key for last modified.
         LastModified,
         /// Key for version.
         Version,