diff --git a/apisix/cli/ngx_tpl.lua b/apisix/cli/ngx_tpl.lua
index 18f663277980d..f97741f2765ef 100644
--- a/apisix/cli/ngx_tpl.lua
+++ b/apisix/cli/ngx_tpl.lua
@@ -317,7 +317,7 @@ http {
         # admin configuration snippet ends
 
         set $upstream_scheme             'http';
-        set $upstream_host               $host;
+        set $upstream_host               $http_host;
         set $upstream_uri                '';
 
         location /apisix/admin {
@@ -410,7 +410,7 @@ http {
         # http server configuration snippet ends
 
         set $upstream_scheme             'http';
-        set $upstream_host               $host;
+        set $upstream_host               $http_host;
         set $upstream_uri                '';
         set $ctx_ref                     '';
 
diff --git a/benchmark/fake-apisix/conf/nginx.conf b/benchmark/fake-apisix/conf/nginx.conf
index 124008dc4516c..9ae60d248141b 100644
--- a/benchmark/fake-apisix/conf/nginx.conf
+++ b/benchmark/fake-apisix/conf/nginx.conf
@@ -84,7 +84,7 @@ http {
 
         location / {
             set $upstream_scheme             'http';
-            set $upstream_host               $host;
+            set $upstream_host               $http_host;
             set $upstream_upgrade            '';
             set $upstream_connection         '';
             set $upstream_uri                '';
diff --git a/t/APISIX.pm b/t/APISIX.pm
index 9dcea3aaf04fe..de8822402016d 100644
--- a/t/APISIX.pm
+++ b/t/APISIX.pm
@@ -480,7 +480,7 @@ _EOC_
         }
 
         set \$upstream_scheme             'http';
-        set \$upstream_host               \$host;
+        set \$upstream_host               \$http_host;
         set \$upstream_uri                '';
         set \$ctx_ref                     '';
         set \$dubbo_service_name          '';