diff --git a/vulfocus-api/vulfocus/settings.py b/vulfocus-api/vulfocus/settings.py
index 9b8c8611..7abd54da 100644
--- a/vulfocus-api/vulfocus/settings.py
+++ b/vulfocus-api/vulfocus/settings.py
@@ -154,8 +154,11 @@
 client = docker.DockerClient(base_url='unix://var/run/docker.sock')
 # 靶场绑定 IP，提供用户访问靶场与 Docker 服务IP保持一致。
 VUL_IP = ""
-if os.environ['VUL_IP']:
-    VUL_IP = os.environ['VUL_IP']
+try:
+    if os.environ['VUL_IP']:
+        VUL_IP = os.environ['VUL_IP']
+except Exception as e:
+    pass
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/2.2/howto/static-files/