diff --git a/user/sh.c b/user/sh.c
index 864405d..836ebcb 100644
--- a/user/sh.c
+++ b/user/sh.c
@@ -134,7 +134,7 @@ runcmd(struct cmd *cmd)
 int
 getcmd(char *buf, int nbuf)
 {
-  write(1, "$ ", 2);
+  write(2, "$ ", 2);
   memset(buf, 0, nbuf);
   gets(buf, nbuf);
   if(buf[0] == 0) // EOF