diff --git a/Doc/library/asyncio-stream.rst b/Doc/library/asyncio-stream.rst
index 885d463c0fca89..d75846163edfdd 100644
--- a/Doc/library/asyncio-stream.rst
+++ b/Doc/library/asyncio-stream.rst
@@ -49,7 +49,7 @@ and work with streams:
 
 
 .. function:: open_connection(host=None, port=None, *, \
-                 limit=None, ssl=None, family=0, proto=0, \
+                 limit=65536, ssl=None, family=0, proto=0, \
                  flags=0, sock=None, local_addr=None, \
                  server_hostname=None, ssl_handshake_timeout=None, \
                  ssl_shutdown_timeout=None, \
@@ -89,7 +89,7 @@ and work with streams:
 
 
 .. function:: start_server(client_connected_cb, host=None, \
-                 port=None, *, limit=None, \
+                 port=None, *, limit=65536, \
                  family=socket.AF_UNSPEC, \
                  flags=socket.AI_PASSIVE, sock=None, \
                  backlog=100, ssl=None, reuse_address=None, \
@@ -137,7 +137,7 @@ and work with streams:
 
 .. rubric:: Unix Sockets
 
-.. function:: open_unix_connection(path=None, *, limit=None, \
+.. function:: open_unix_connection(path=None, *, limit=65536, \
                ssl=None, sock=None, server_hostname=None, \
                ssl_handshake_timeout=None, ssl_shutdown_timeout=None)
    :async:
@@ -169,7 +169,7 @@ and work with streams:
 
 
 .. function:: start_unix_server(client_connected_cb, path=None, \
-                 *, limit=None, sock=None, backlog=100, ssl=None, \
+                 *, limit=65536, sock=None, backlog=100, ssl=None, \
                  ssl_handshake_timeout=None, \
                  ssl_shutdown_timeout=None, start_serving=True, \
                  cleanup_socket=True, mode=None)
diff --git a/Doc/library/asyncio-subprocess.rst b/Doc/library/asyncio-subprocess.rst
index 70f711b779edf8..2fdc10db5bfd51 100644
--- a/Doc/library/asyncio-subprocess.rst
+++ b/Doc/library/asyncio-subprocess.rst
@@ -62,7 +62,7 @@ Creating Subprocesses
 =====================
 
 .. function:: create_subprocess_exec(program, *args, stdin=None, \
-                 stdout=None, stderr=None, limit=None, **kwds)
+                 stdout=None, stderr=None, limit=65536, **kwds)
    :async:
 
    Create a subprocess.
@@ -84,7 +84,7 @@ Creating Subprocesses
 
 
 .. function:: create_subprocess_shell(cmd, stdin=None, \
-                 stdout=None, stderr=None, limit=None, **kwds)
+                 stdout=None, stderr=None, limit=65536, **kwds)
    :async:
 
    Run the *cmd* shell command.