diff --git a/etebase-server.ini.example b/etebase-server.ini.example
index 436efe1..e5632c1 100644
--- a/etebase-server.ini.example
+++ b/etebase-server.ini.example
@@ -15,6 +15,10 @@ media_root = /path/to/media
 [allowed_hosts]
 allowed_host1 = example.com
 
+[ports]
+;http_port = 8000
+;https_port = 8043
+
 [database]
 engine = django.db.backends.sqlite3
 name = db.sqlite3
diff --git a/etebase_server/settings.py b/etebase_server/settings.py
index f6c726d..8731083 100644
--- a/etebase_server/settings.py
+++ b/etebase_server/settings.py
@@ -163,10 +163,18 @@
         ETEBASE_REDIS_URI = section.get("redis_uri")
 
     if "allowed_hosts" in config:
+        if "ports" in config and "https_port" in config["ports"]:
+            https_port = ":" + config["ports"]["https_port"]
+        else:
+            https_port = ""
+        if "ports" in config and "http_port" in config["ports"]:
+            http_port = ":" + config["ports"]["http_port"]
+        else:
+            http_port = ""
         ALLOWED_HOSTS = [y for x, y in config.items("allowed_hosts")]
-        CSRF_TRUSTED_ORIGINS = ["https://" + y for x, y in config.items("allowed_hosts")] + \
-                               ["http://" + y for x, y in config.items("allowed_hosts")]
-
+        CSRF_TRUSTED_ORIGINS = ["https://" + y + https_port for x, y in config.items("allowed_hosts")] + \
+                               ["http://" + y + http_port for x, y in config.items("allowed_hosts")]
+    
     if "database" in config:
         DATABASES = {"default": {x.upper(): y for x, y in config.items("database")}}