diff --git a/docs/ref/contrib/postgres/operations.txt b/docs/ref/contrib/postgres/operations.txt
index f4dd44ebbd..cc2cbe7c51 100644
--- a/docs/ref/contrib/postgres/operations.txt
+++ b/docs/ref/contrib/postgres/operations.txt
@@ -23,9 +23,8 @@ the ``django.contrib.postgres.operations`` module.
 
 .. class:: HStoreExtension()
 
-    A subclass of :class:`~django.contrib.postgres.operations.CreateExtension`
-    which will install the ``hstore`` extension and also immediately set up the
-    connection to interpret hstore data.
+    Installs the ``hstore`` extension and also sets up the connection to
+    interpret hstore data for possible use in subsequent migrations.
 
 ``TrigramExtension``
 ====================
@@ -34,13 +33,11 @@ the ``django.contrib.postgres.operations`` module.
 
     .. versionadded:: 1.10
 
-    A subclass of :class:`~django.contrib.postgres.operations.CreateExtension`
-    that installs the ``pg_trgm`` extension.
+    Installs the ``pg_trgm`` extension.
 
 ``UnaccentExtension``
 =====================
 
 .. class:: UnaccentExtension()
 
-    A subclass of :class:`~django.contrib.postgres.operations.CreateExtension`
-    which will install the ``unaccent`` extension.
+    Installs the ``unaccent`` extension.