diff --git a/core/src/services/oss/appender.rs b/core/src/services/oss/appender.rs
index 71eb1b69c92d..b327d824931a 100644
--- a/core/src/services/oss/appender.rs
+++ b/core/src/services/oss/appender.rs
@@ -39,7 +39,6 @@ pub struct OssAppender {
 }
 
 impl OssAppender {
-    #[allow(dead_code)]
     pub fn new(core: Arc<OssCore>, path: &str, op: OpAppend) -> Self {
         Self {
             core,
diff --git a/core/src/services/oss/backend.rs b/core/src/services/oss/backend.rs
index 7b7320840857..ee51da54597c 100644
--- a/core/src/services/oss/backend.rs
+++ b/core/src/services/oss/backend.rs
@@ -37,6 +37,7 @@ use super::writer::OssWriter;
 use crate::ops::*;
 use crate::raw::*;
 use crate::*;
+use crate::services::oss::appender::OssAppender;
 
 const DEFAULT_WRITE_MIN_SIZE: usize = 8 * 1024 * 1024;
 /// Aliyun Object Storage Service (OSS) support
@@ -441,7 +442,7 @@ impl Accessor for OssBackend {
     type BlockingReader = ();
     type Writer = OssWriter;
     type BlockingWriter = ();
-    type Appender = ();
+    type Appender = OssAppender;
     type Pager = OssPager;
     type BlockingPager = ();
 
@@ -538,6 +539,13 @@ impl Accessor for OssBackend {
         ))
     }
 
+    async fn append(&self, path: &str, args: OpAppend) -> Result<(RpAppend, Self::Appender)> {
+        Ok((
+            RpAppend::default(),
+            OssAppender::new(self.core.clone(), path, args),
+        ))
+    }
+
     async fn copy(&self, from: &str, to: &str, _args: OpCopy) -> Result<RpCopy> {
         let resp = self.core.oss_copy_object(from, to).await?;
         let status = resp.status();