rename cipher->ciphers
diff --git a/cryptography/hazmat/backends/openssl/backend.py b/cryptography/hazmat/backends/openssl/backend.py
index 43d360a..d08cd3e 100644
--- a/cryptography/hazmat/backends/openssl/backend.py
+++ b/cryptography/hazmat/backends/openssl/backend.py
@@ -28,7 +28,7 @@
     HashBackend, PBKDF2HMACBackend, PKCS8SerializationBackend, RSABackend,
     TraditionalOpenSSLSerializationBackend
 )
-from cryptography.hazmat.backends.openssl.cipher import (
+from cryptography.hazmat.backends.openssl.ciphers import (
     _AESCTRCipherContext, _CipherContext
 )
 from cryptography.hazmat.backends.openssl.dsa import (
diff --git a/cryptography/hazmat/backends/openssl/cipher.py b/cryptography/hazmat/backends/openssl/ciphers.py
similarity index 100%
rename from cryptography/hazmat/backends/openssl/cipher.py
rename to cryptography/hazmat/backends/openssl/ciphers.py