diff --git a/seafile-server-centos-7-amd64-http b/seafile-server-centos-7-amd64-http
index 36c0f78..2503717 100644
--- a/seafile-server-centos-7-amd64-http
+++ b/seafile-server-centos-7-amd64-http
@@ -183,7 +183,7 @@ server {
 
     location / {
          proxy_pass         http://127.0.0.1:8000;
-         proxy_set_header   Host $host:$server_port;
+         proxy_set_header   Host $host;
          proxy_set_header   X-Real-IP $remote_addr;
          proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_set_header   X-Forwarded-Host $server_name;
diff --git a/seafile-server-ubuntu-16-04-amd64-http b/seafile-server-ubuntu-16-04-amd64-http
index a025b38..0d6802c 100644
--- a/seafile-server-ubuntu-16-04-amd64-http
+++ b/seafile-server-ubuntu-16-04-amd64-http
@@ -155,7 +155,7 @@ server {
 
     location / {
          proxy_pass         http://127.0.0.1:8000;
-         proxy_set_header   Host $host:$server_port;
+         proxy_set_header   Host $host;
          proxy_set_header   X-Real-IP $remote_addr;
          proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_set_header   X-Forwarded-Host $server_name;