diff --git a/src/huggingface_hub/hf_api.py b/src/huggingface_hub/hf_api.py
index 260e7767be..a0ca584773 100644
--- a/src/huggingface_hub/hf_api.py
+++ b/src/huggingface_hub/hf_api.py
@@ -7510,7 +7510,7 @@ def create_inference_endpoint(
                 "scaling": {
                     "maxReplica": max_replica,
                     "minReplica": min_replica,
-                    "scaleToZeroTimeout": scale_to_zero_timeout
+                    "scaleToZeroTimeout": scale_to_zero_timeout,
                 },
             },
             "model": {
@@ -7663,7 +7663,7 @@ def update_inference_endpoint(
                 "scaling": {
                     "maxReplica": max_replica,
                     "minReplica": min_replica,
-                    "scaleToZeroTimeout": scale_to_zero_timeout
+                    "scaleToZeroTimeout": scale_to_zero_timeout,
                 },
             }
         if any(value is not None for value in (repository, framework, revision, task, custom_image)):