diff --git a/botocore/args.py b/botocore/args.py
index 4ff310b5f9..aeb9ff4198 100644
--- a/botocore/args.py
+++ b/botocore/args.py
@@ -276,7 +276,7 @@ def compute_client_args(
         self._compute_connect_timeout(config_kwargs)
         self._compute_user_agent_appid_config(config_kwargs)
         self._compute_request_compression_config(config_kwargs)
-        self._compute_sigv4a_signing_region_set(config_kwargs)
+        self._compute_sigv4a_signing_region_set_config(config_kwargs)
         s3_config = self.compute_s3_config(client_config)
 
         is_s3_service = self._is_s3_service(service_name)
@@ -773,7 +773,7 @@ def _compute_user_agent_appid_config(self, config_kwargs):
             )
         config_kwargs['user_agent_appid'] = user_agent_appid
 
-    def _compute_sigv4a_signing_region_set(self, config_kwargs):
+    def _compute_sigv4a_signing_region_set_config(self, config_kwargs):
         sigv4a_signing_region_set = config_kwargs.get(
             'sigv4a_signing_region_set'
         )