diff --git a/src/OpenSSL/crypto.py b/src/OpenSSL/crypto.py
index 17fd522fc..a9b673c53 100644
--- a/src/OpenSSL/crypto.py
+++ b/src/OpenSSL/crypto.py
@@ -784,7 +784,8 @@ def __init__(
         :param bool critical: A flag indicating whether this is a critical
             extension.
 
-        :param value: The value of the extension.
+        :param value: The OpenSSL textual representation of the extension's
+            value.
         :type value: :py:data:`bytes`
 
         :param subject: Optional X509 certificate to use as subject.