diff --git a/awscrt/s3.py b/awscrt/s3.py
index 715119ce5..7e368895e 100644
--- a/awscrt/s3.py
+++ b/awscrt/s3.py
@@ -405,7 +405,7 @@ def _on_progress(self, progress):
 
 
 def create_default_s3_signing_config(*, region: str, credential_provider: AwsCredentialsProvider, **kwargs):
-    """Create a default :class:`AwsSigningConfig` for S3 service.
+    """Create a default `AwsSigningConfig` for S3 service.
 
         Attributes:
             region (str): The region to sign against.