diff --git a/cryptography/hazmat/primitives/interfaces.py b/cryptography/hazmat/primitives/interfaces.py
index a6da7db..07e88e2 100644
--- a/cryptography/hazmat/primitives/interfaces.py
+++ b/cryptography/hazmat/primitives/interfaces.py
@@ -307,7 +307,7 @@
     def generator(self):
         """
         The generator that is used in generating the DSA keypair and used
-        in the DSA signing and verification processes."
+        in the DSA signing and verification processes.
         """
 
     @abc.abstractproperty
diff --git a/docs/hazmat/primitives/interfaces.rst b/docs/hazmat/primitives/interfaces.rst
index c1a2d23..d94aee8 100644
--- a/docs/hazmat/primitives/interfaces.rst
+++ b/docs/hazmat/primitives/interfaces.rst
@@ -241,14 +241,14 @@
 
         :type: int
 
-        The prime modulus that's used in generating the DSA key pair and used
+        The prime modulus that is used in generating the DSA key pair and used
         in the DSA signing and verification processes.
 
     .. attribute:: subgroup_order
 
         :type: int
 
-        The subgroup order that's used in generating the DSA key pair
+        The subgroup order that is used in generating the DSA key pair
         by the generator and used in the DSA signing and verification
         processes.
 
@@ -257,20 +257,20 @@
         :type: int
 
         The generator that is used in generating the DSA key pair and used
-        in the DSA signing and verification processes."
+        in the DSA signing and verification processes.
 
     .. attribute:: p
 
         :type: int
 
-        The prime modulus that's used in generating the DSA key pair and used
+        The prime modulus that is used in generating the DSA key pair and used
         in the DSA signing and verification processes. Alias for :attr:`modulus`.
 
     .. attribute:: q
 
         :type: int
 
-        The subgroup order that's used in generating the DSA key pair
+        The subgroup order that is used in generating the DSA key pair
         by the generator and used in the DSA signing and verification
         processes. Alias for :attr:`subgroup_order`.
 
@@ -286,7 +286,7 @@
 
     .. versionadded:: 0.3
 
-    An `DSA`_ private key.
+    A `DSA`_ private key.
 
     .. method:: public_key()
 
@@ -323,7 +323,7 @@
 
     .. versionadded:: 0.3
 
-    An `DSA`_ private key.
+    A `DSA`_ private key.
 
     .. method:: parameters()