This is another one that is missing on OSX
diff --git a/OpenSSL/SSL.py b/OpenSSL/SSL.py
index d2b001a..805693b 100644
--- a/OpenSSL/SSL.py
+++ b/OpenSSL/SSL.py
@@ -71,7 +71,10 @@
 OP_PKCS1_CHECK_2 = _lib.SSL_OP_PKCS1_CHECK_2
 OP_NETSCAPE_CA_DN_BUG = _lib.SSL_OP_NETSCAPE_CA_DN_BUG
 OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG= _lib.SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG
-OP_NO_COMPRESSION = _lib.SSL_OP_NO_COMPRESSION
+try:
+    OP_NO_COMPRESSION = _lib.SSL_OP_NO_COMPRESSION
+except AttributeError:
+    pass
 
 OP_NO_QUERY_MTU = _lib.SSL_OP_NO_QUERY_MTU
 OP_COOKIE_EXCHANGE = _lib.SSL_OP_COOKIE_EXCHANGE