diff --git a/install.sh b/install.sh
index 082dc1e..c3def28 100755
--- a/install.sh
+++ b/install.sh
@@ -107,6 +107,7 @@ install_crust_node()
         local upgrade_pid=$(ps -ef | grep "/opt/crust/crust-node/scripts/upgrade.sh" | grep -v grep | awk '{print $2}')
         if [ x"$upgrade_pid" != x"" ]; then
             kill -9 $upgrade_pid
+            mkdir -p $installdir/logs
             nohup $installdir/scripts/upgrade.sh &>$installdir/logs/upgrade.log &
             if [ $? -ne 0 ]; then
                 log_err "[ERROR] Start crust-sworker upgrade failed"