diff --git a/docs/hazmat/primitives/padding.rst b/docs/hazmat/primitives/padding.rst
index 4d79ac8..764fef4 100644
--- a/docs/hazmat/primitives/padding.rst
+++ b/docs/hazmat/primitives/padding.rst
@@ -54,7 +54,7 @@
 
 .. class:: PaddingContext
 
-    When calling ``padder()`` or ``unpadder()`` you will receive an a return
+    When calling ``padder()`` or ``unpadder()`` you will receive a return
     object conforming to the ``PaddingContext`` interface. You can then call
     ``update(data)`` with data until you have fed everything into the context.
     Once that is done call ``finalize()`` to finish the operation and obtain