diff --git a/README.rst b/README.rst
index 9aac5c8..32e227f 100644
--- a/README.rst
+++ b/README.rst
@@ -52,7 +52,7 @@ constructor as bytes in the PEM format:
   with open('key.pem', 'rb') as fh:
       requests.get(url, auth=HTTPSignatureAuth(algorithm="rsa-sha256", key=fh.read(), key_id=preshared_key_id))
 
-When verifying, the ``key_resolver()`` callback should provide the public key as bytes in the PEM format as well:
+When verifying, the ``key_resolver()`` callback should provide the public key as bytes in the PEM format as well.
 
 Links
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