diff --git a/doc/config.rst b/doc/config.rst
index 4bcf5a4911..782b1078e3 100644
--- a/doc/config.rst
+++ b/doc/config.rst
@@ -1403,7 +1403,7 @@ Cookie authentication options
     :type: string
     :default: ``''``
 
-    The public key for the reCaptcha service that can be obtain from
+    The public key for the reCaptcha service that can be obtained from
     http://www.google.com/recaptcha.
 
     reCaptcha will be then used in :ref:`cookie`.