diff --git a/pep-3151.txt b/pep-3151.txt
index 6488e19c9..8dfca59a1 100644
--- a/pep-3151.txt
+++ b/pep-3151.txt
@@ -369,7 +369,7 @@ the list of errnos mapped to them, is submitted to discussion:
   else (ENOTDIR)
 
 * ``PermissionError``: trying to run an operation without the adequate access
-  rights - for example filesystem permissions (EACCESS, EPERM)
+  rights - for example filesystem permissions (EACCES, EPERM)
 
 * ``BlockingIOError``: an operation would block on an object (e.g. socket) set
   for non-blocking operation (EAGAIN, EALREADY, EWOULDBLOCK, EINPROGRESS);
@@ -385,7 +385,7 @@ the list of errnos mapped to them, is submitted to discussion:
 
 * ``ConnectionResetError``: connection reset by peer (ECONNRESET)
 
-* ``TimeoutError``: connection timed out (ECONNTIMEOUT); this can be re-cast
+* ``TimeoutError``: connection timed out (ETIMEDOUT); this can be re-cast
   as a generic timeout exception, replacing ``socket.timeout`` and also useful
   for other types of timeout (for example in Lock.acquire())
 
@@ -413,8 +413,8 @@ shown::
         +-- FileNotFoundError                                      ENOENT
         +-- IsADirectoryError                                      EISDIR
         +-- NotADirectoryError                                    ENOTDIR
-    +-- PermissionError                                    EACCESS, EPERM
-    +-- TimeoutError                                         ECONNTIMEOUT
+    +-- PermissionError                                     EACCES, EPERM
+    +-- TimeoutError                                            ETIMEDOUT
 
 Naming
 ------