diff --git a/Lib/test/test_socketserver.py b/Lib/test/test_socketserver.py
index d3cd5a6..19b5bf5 100644
--- a/Lib/test/test_socketserver.py
+++ b/Lib/test/test_socketserver.py
@@ -58,7 +58,7 @@
 def teststream(proto, addr):
     s = socket.socket(proto, socket.SOCK_STREAM)
     s.connect(addr)
-    s.send(teststring)
+    s.sendall(teststring)
     buf = data = receive(s, 100)
     while data and '\n' not in buf:
         data = receive(s, 100)