diff --git a/src/api2/admin/datastore/backup.rs b/src/api2/admin/datastore/backup.rs
index 10ef4774..d1986a04 100644
--- a/src/api2/admin/datastore/backup.rs
+++ b/src/api2/admin/datastore/backup.rs
@@ -144,6 +144,10 @@ fn backup_api() -> Router {
                 .download(api_method_dynamic_chunk_index())
                 .post(api_method_create_dynamic_index())
         )
+        .subdir(
+            "dynamic_close", Router::new()
+                .post(api_method_close_dynamic_index())
+        )
         .subdir("test1", test1)
         .subdir("test2", test2)
         .list_subdirs();
@@ -200,13 +204,40 @@ fn create_dynamic_index(
     Ok(json!(uid))
 }
 
+pub fn api_method_close_dynamic_index() -> ApiMethod {
+    ApiMethod::new(
+        close_dynamic_index,
+        ObjectSchema::new("Close dynamic index writer.")
+            .required("wid", IntegerSchema::new("Dynamic writer ID.")
+                      .minimum(1)
+                      .maximum(256)
+            )
+    )
+}
+
+fn close_dynamic_index (
+    param: Value,
+    _info: &ApiMethod,
+    rpcenv: &mut RpcEnvironment,
+) -> Result<Value, Error> {
+
+    let wid = tools::required_integer_param(&param, "wid")? as usize;
+
+    let env: &BackupEnvironment = rpcenv.as_ref();
+
+    env.dynamic_writer_close(wid)?;
+
+    Ok(Value::Null)
+}
+
+
+
 fn test1_get (
     _param: Value,
     _info: &ApiMethod,
     rpcenv: &mut RpcEnvironment,
 ) -> Result<Value, Error> {
 
-    println!("TYPEID {:?}", (*rpcenv).type_id());
 
     let env: &BackupEnvironment = rpcenv.as_ref();
 
diff --git a/src/api2/admin/datastore/backup/environment.rs b/src/api2/admin/datastore/backup/environment.rs
index 8f569aa7..66b954f0 100644
--- a/src/api2/admin/datastore/backup/environment.rs
+++ b/src/api2/admin/datastore/backup/environment.rs
@@ -89,6 +89,20 @@ impl BackupEnvironment {
         Ok(())
     }
 
+    /// Close dynamic writer
+    pub fn dynamic_writer_close(&self, wid: usize) -> Result<(), Error> {
+        let mut state = self.state.lock().unwrap();
+
+        let mut data = match state.dynamic_writers.remove(&wid) {
+            Some(data) => data,
+            None => bail!("dynamic writer '{}' not registered", wid),
+        };
+
+        data.1.close()?;
+
+        Ok(())
+    }
+
     pub fn log<S: AsRef<str>>(&self, msg: S) {
         self.worker.log(msg);
     }