language update
diff --git a/docs/x509/reference.rst b/docs/x509/reference.rst
index 14727e7..df17f95 100644
--- a/docs/x509/reference.rst
+++ b/docs/x509/reference.rst
@@ -1886,7 +1886,7 @@
 
     A generic extension class used to hold the raw value of **non-critical**
     extensions that ``cryptography`` does not know how to parse. Extensions
-    marked critical will still raise
+    marked critical will raise
     :class:`~cryptography.x509.UnsupportedExtension`.
 
     .. attribute:: oid