diff --git a/sh.c b/sh.c
index ed2c1d9..3e596ba 100644
--- a/sh.c
+++ b/sh.c
@@ -65,7 +65,7 @@ runcmd(struct cmd *cmd)
   struct redircmd *rcmd;
 
   if(cmd == 0)
-    return;
+    exit();
   
   switch(cmd->type){
   default: