diff --git a/build/bin/wfcsetup.sh b/build/bin/wfcsetup.sh
index 859396c..2e92293 100755
--- a/build/bin/wfcsetup.sh
+++ b/build/bin/wfcsetup.sh
@@ -99,11 +99,10 @@ case "$1" in
         fi
         if grep -q "TZ=" ${org_env_file}; then
             sed "s|TZ=.*|TZ=${TIMEZONE}|" ${org_env_file} > $tmp_env_file
+            mv $tmp_env_file $org_env_file 
         else
             echo "TZ=${TIMEZONE}" >> ${org_env_file}
         fi
-        mv $tmp_env_file $org_env_file 
-
                 
         # replace nginx.conf gateway server ip and port
 
diff --git a/build/docker/env/default.env b/build/docker/env/default.env
index c6b7339..00e29bb 100644
--- a/build/docker/env/default.env
+++ b/build/docker/env/default.env
@@ -23,4 +23,4 @@ WFC_SERVER_IP=192.168.13.128
 NACOS_SERVER_IP=${WFC_SERVER_IP}
 GATEWAY_SERVER_IP=${WFC_SERVER_IP}
 RESTART_OPTION=on-failure:5
-TZ=Asia/Shanghai
+TZ=Asia/Shanghai
\ No newline at end of file