diff --git a/lualib/socket.lua b/lualib/socket.lua
index 4ed8c769..93b9bf4c 100644
--- a/lualib/socket.lua
+++ b/lualib/socket.lua
@@ -151,7 +151,7 @@ function socket.bind(os_fd)
 end
 
 function socket.stdin()
-	return socket.bind(1)
+	return socket.bind(0)
 end
 
 function socket.start(id, func)