diff --git a/docs/types/enums.rst b/docs/types/enums.rst
index 6e730628..4e019ee7 100644
--- a/docs/types/enums.rst
+++ b/docs/types/enums.rst
@@ -1,7 +1,7 @@
 Enums
 =====
 
-A ``Enum`` is a special ``GraphQL`` type that represents a set of
+An ``Enum`` is a special ``GraphQL`` type that represents a set of
 symbolic names (members) bound to unique, constant values.
 
 Definition