diff --git a/configs/development.py b/configs/development.py
index 3dbb17b..be6cf3b 100644
--- a/configs/development.py
+++ b/configs/development.py
@@ -7,7 +7,7 @@ SALT = '$2b$12$yLUMTIfl21FKJQpTkRQXCu'
 SECRET_KEY = 'e951e5a1f4b94151b360f47edf596dd2'
 BIND_ADDRESS = '0.0.0.0'
 PORT = 9191
-SERVER_EXTERNAL_SSL = None
+SERVER_EXTERNAL_SSL = os.getenv('SERVER_EXTERNAL_SSL', None)
 
 ### DATABASE CONFIG
 SQLA_DB_USER = 'pda'
diff --git a/configs/docker_config.py b/configs/docker_config.py
index 4194aa9..ae2e275 100644
--- a/configs/docker_config.py
+++ b/configs/docker_config.py
@@ -6,7 +6,7 @@ import json
 # Defaults for Docker image
 BIND_ADDRESS = '0.0.0.0'
 PORT = 80
-SERVER_EXTERNAL_SSL = True
+SERVER_EXTERNAL_SSL = os.getenv('SERVER_EXTERNAL_SSL', True)
 SQLALCHEMY_DATABASE_URI = 'sqlite:////data/powerdns-admin.db'
 SESSION_COOKIE_SAMESITE = 'Lax'
 CSRF_COOKIE_HTTPONLY = True
diff --git a/powerdnsadmin/default_config.py b/powerdnsadmin/default_config.py
index 723cb85..d9e2759 100644
--- a/powerdnsadmin/default_config.py
+++ b/powerdnsadmin/default_config.py
@@ -8,7 +8,7 @@ SECRET_KEY = 'e951e5a1f4b94151b360f47edf596dd2'
 BIND_ADDRESS = '0.0.0.0'
 PORT = 9191
 HSTS_ENABLED = False
-SERVER_EXTERNAL_SSL = True
+SERVER_EXTERNAL_SSL = os.getenv('SERVER_EXTERNAL_SSL', True)
 
 SESSION_TYPE = 'sqlalchemy'
 SESSION_COOKIE_SAMESITE = 'Lax'