diff --git a/1.1-composable/nginx.conf b/1.1-composable/nginx.conf
index 4debf13..da0c8eb 100644
--- a/1.1-composable/nginx.conf
+++ b/1.1-composable/nginx.conf
@@ -40,7 +40,7 @@ http {
 
         location / {
             proxy_pass http://wirecloud:8000;
-            proxy_set_header Host $host;
+            proxy_set_header Host $host:$server_port;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         }
diff --git a/1.2/nginx.conf b/1.2/nginx.conf
index 4debf13..da0c8eb 100644
--- a/1.2/nginx.conf
+++ b/1.2/nginx.conf
@@ -40,7 +40,7 @@ http {
 
         location / {
             proxy_pass http://wirecloud:8000;
-            proxy_set_header Host $host;
+            proxy_set_header Host $host:$server_port;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         }
diff --git a/1.3/nginx.conf b/1.3/nginx.conf
index 4debf13..da0c8eb 100644
--- a/1.3/nginx.conf
+++ b/1.3/nginx.conf
@@ -40,7 +40,7 @@ http {
 
         location / {
             proxy_pass http://wirecloud:8000;
-            proxy_set_header Host $host;
+            proxy_set_header Host $host:$server_port;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         }
diff --git a/dev/nginx.conf b/dev/nginx.conf
index 4debf13..da0c8eb 100644
--- a/dev/nginx.conf
+++ b/dev/nginx.conf
@@ -40,7 +40,7 @@ http {
 
         location / {
             proxy_pass http://wirecloud:8000;
-            proxy_set_header Host $host;
+            proxy_set_header Host $host:$server_port;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         }
diff --git a/hub-docs/nginx.conf b/hub-docs/nginx.conf
index 4debf13..da0c8eb 100644
--- a/hub-docs/nginx.conf
+++ b/hub-docs/nginx.conf
@@ -40,7 +40,7 @@ http {
 
         location / {
             proxy_pass http://wirecloud:8000;
-            proxy_set_header Host $host;
+            proxy_set_header Host $host:$server_port;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         }