Fixed a few typos
diff --git a/docs/hazmat/primitives/symmetric-encryption.rst b/docs/hazmat/primitives/symmetric-encryption.rst
index bca7835..bcb1fb3 100644
--- a/docs/hazmat/primitives/symmetric-encryption.rst
+++ b/docs/hazmat/primitives/symmetric-encryption.rst
@@ -337,7 +337,7 @@
# Generate a random 96-bit IV.
iv = os.urandom(12)
- # Construct a AES-GCM Cipher object with the given key and a
+ # Construct an AES-GCM Cipher object with the given key and a
# randomly generated IV.
encryptor = Cipher(
algorithms.AES(key),