For example
diff --git a/docs/hazmat/primitives/symmetric-encryption.rst b/docs/hazmat/primitives/symmetric-encryption.rst
index a0e7650..f68979a 100644
--- a/docs/hazmat/primitives/symmetric-encryption.rst
+++ b/docs/hazmat/primitives/symmetric-encryption.rst
@@ -64,9 +64,10 @@
:return bytes: Returns the data that was encrypted or decrypted.
When the ``BlockCipher`` was constructed in a mode turns it into a
- stream cipher, this will return bytes immediately, however in other
- modes it will return blocks in chunks, whose size is determined by the
- cipher's block size.
+ stream cipher (e.g.
+ :class:`cryptography.hazmat.primitives.block.modes.CTR`), this will
+ return bytes immediately, however in other modes it will return blocks
+ in chunks, whose size is determined by the cipher's block size.
.. method:: finalize()