diff --git a/CHANGES b/CHANGES
index 6a890ef122..2abf62766f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,4 @@
+    * Fix start_id type for XAUTOCLAIM
     * Remove verbose logging from cluster.py
     * Add retry mechanism to async version of Connection
     * Compare commands case-insensitively in the asyncio command parser
diff --git a/redis/commands/core.py b/redis/commands/core.py
index 027d3dbc7c..455c3f46cb 100644
--- a/redis/commands/core.py
+++ b/redis/commands/core.py
@@ -3420,7 +3420,7 @@ def xautoclaim(
         groupname: GroupT,
         consumername: ConsumerT,
         min_idle_time: int,
-        start_id: int = 0,
+        start_id: StreamIdT = "0-0",
         count: Union[int, None] = None,
         justid: bool = False,
     ) -> ResponseT: