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-rw-r--r--Doc/library/socket.rst2
1 files changed, 1 insertions, 1 deletions
diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
index 7d2dea0..cb1b87c 100644
--- a/Doc/library/socket.rst
+++ b/Doc/library/socket.rst
@@ -23,7 +23,7 @@ PS1:7 and PS1:8). The platform-specific reference material for the various
socket-related system calls are also a valuable source of information on the
details of socket semantics. For Unix, refer to the manual pages; for Windows,
see the WinSock (or Winsock 2) specification. For IPv6-ready APIs, readers may
-want to refer to :rfc:`2553` titled Basic Socket Interface Extensions for IPv6.
+want to refer to :rfc:`3493` titled Basic Socket Interface Extensions for IPv6.
.. index:: object: socket