better english
diff --git a/docs/hazmat/primitives/symmetric-encryption.rst b/docs/hazmat/primitives/symmetric-encryption.rst
index f68979a..b8b1c83 100644
--- a/docs/hazmat/primitives/symmetric-encryption.rst
+++ b/docs/hazmat/primitives/symmetric-encryption.rst
@@ -66,8 +66,8 @@
When the ``BlockCipher`` was constructed in a mode turns it into a
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.
+ return bytes immediately, however in other modes it will return chunks,
+ whose size is determined by the cipher's block size.
.. method:: finalize()