rename to CertificateSigningRequest
diff --git a/docs/hazmat/backends/interfaces.rst b/docs/hazmat/backends/interfaces.rst
index 2b53dfd..15a8234 100644
--- a/docs/hazmat/backends/interfaces.rst
+++ b/docs/hazmat/backends/interfaces.rst
@@ -516,4 +516,5 @@
 
         :param bytes data: PEM formatted certificate request data.
 
-        :returns: An instance of :class:`~cryptography.x509.CSR`.
+        :returns: An instance of
+            :class:`~cryptography.x509.CertificateSigningRequest`.