diff --git a/run.sh b/run.sh
index deff925..5c183a2 100644
--- a/run.sh
+++ b/run.sh
@@ -12,7 +12,7 @@ function run(){
 if [ -e *.log ]
 then
   pid=`stat *.log|awk 'NR>1{next}{c=$0;gsub(/\D/,"",c);print c}'`
-  kill -9 pid
+  kill -9 $pid
   if [ $? -eq 0 ]
   then
     echo 'kill $pid success'