diff --git a/nginx.conf b/nginx.conf
index cf60fa1a..f3e9715c 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -6,7 +6,7 @@ events {
 
 http {
     default_type  application/octet-stream;
-	include       /etc/nginx/mime.types;
+    include       /etc/nginx/mime.types;
     client_max_body_size 10G;
     sendfile        on;
     client_header_timeout 3600;
@@ -30,8 +30,9 @@ http {
         	proxy_pass http://sonic-server-gateway:3000/;
         	proxy_http_version 1.1;
         	proxy_set_header Upgrade $http_upgrade;
-            proxy_set_header Connection "upgrade";
-        }
+                proxy_set_header Connection "upgrade";
+                }
+		
 		location /server/v3/api-docs/swagger-config {
 		    #WORKAROUND fixed knife4j doc base path
                     return 200 '{"configUrl":"/server/v3/api-docs/swagger-config","oauth2RedirectUrl":"","operationsSorter":"alpha","tagsSorter":"alpha","urls":[{"name":"sonic-server-controller","serviceName":"sonic-server-controller","url":"/server/api/controller/v3/api-docs?group=default","contextPath":"/server/api/controller","order":1},{"name":"sonic-server-folder","serviceName":"sonic-server-folder","url":"/server/api/folder/v3/api-docs?group=default","contextPath":"/server/api/folder","order":2}],"validatorUrl":""}';
@@ -41,7 +42,7 @@ http {
         	proxy_pass http://localhost:9222/;
         	proxy_http_version 1.1;
         	proxy_set_header Upgrade $http_upgrade;
-            proxy_set_header Connection "upgrade";
-        }
+                proxy_set_header Connection "upgrade";
+                }
 	}
 }