diff --git a/sdk/formrecognizer/azure-ai-formrecognizer/azure/ai/formrecognizer/_form_base_client.py b/sdk/formrecognizer/azure-ai-formrecognizer/azure/ai/formrecognizer/_form_base_client.py
index fd059b2d12ac..57d2f980dce1 100644
--- a/sdk/formrecognizer/azure-ai-formrecognizer/azure/ai/formrecognizer/_form_base_client.py
+++ b/sdk/formrecognizer/azure-ai-formrecognizer/azure/ai/formrecognizer/_form_base_client.py
@@ -49,6 +49,7 @@ def __init__(self, endpoint: str, credential: Union[AzureKeyCredential, TokenCre
                 "x-content-type-options",
                 "ms-azure-ai-errorcode",
                 "x-ms-cs-error-code",
+                "x-ms-region",
             }
         )
         http_logging_policy.allowed_query_params.update(
diff --git a/sdk/formrecognizer/azure-ai-formrecognizer/azure/ai/formrecognizer/aio/_form_base_client_async.py b/sdk/formrecognizer/azure-ai-formrecognizer/azure/ai/formrecognizer/aio/_form_base_client_async.py
index 6c0459b1ba22..6e8edca291d9 100644
--- a/sdk/formrecognizer/azure-ai-formrecognizer/azure/ai/formrecognizer/aio/_form_base_client_async.py
+++ b/sdk/formrecognizer/azure-ai-formrecognizer/azure/ai/formrecognizer/aio/_form_base_client_async.py
@@ -55,6 +55,7 @@ def __init__(
                 "x-content-type-options",
                 "ms-azure-ai-errorcode",
                 "x-ms-cs-error-code",
+                "x-ms-region",
             }
         )
         http_logging_policy.allowed_query_params.update(