diff --git a/openslides/utils/cache.py b/openslides/utils/cache.py
index 04db952db..518da51f2 100644
--- a/openslides/utils/cache.py
+++ b/openslides/utils/cache.py
@@ -15,6 +15,7 @@ from typing import (  # noqa
 
 from channels import Group
 from channels.sessions import session_for_reply_channel
+from django.conf import settings
 from django.core.cache import cache, caches
 
 if TYPE_CHECKING:
@@ -296,7 +297,10 @@ def get_redis_connection() -> Any:
 
 if use_redis_cache():
     websocket_user_cache = RedisWebsocketUserCache()  # type: BaseWebsocketUserCache
-    restricted_data_cache = RestrictedDataCache()  # type: Union[RestrictedDataCache, DummyRestrictedDataCache]
+    if settings.DISABLE_USER_CACHE:
+        restricted_data_cache = DummyRestrictedDataCache()  # type: Union[RestrictedDataCache, DummyRestrictedDataCache]
+    else:
+        restricted_data_cache = RestrictedDataCache()
 else:
     websocket_user_cache = DjangoCacheWebsocketUserCache()
     restricted_data_cache = DummyRestrictedDataCache()
diff --git a/openslides/utils/settings.py.tpl b/openslides/utils/settings.py.tpl
index 542b38313..41d5b548d 100644
--- a/openslides/utils/settings.py.tpl
+++ b/openslides/utils/settings.py.tpl
@@ -112,6 +112,11 @@ if use_redis:
     SESSION_ENGINE = 'redis_sessions.session'
 
 
+# When use_redis is True, the restricted data cache caches the data individuel
+# for each user. This requires a lot of memory if there are a lot of active
+# users. If use_redis is False, this setting has no effect.
+DISABLE_USER_CACHE = False
+
 # Internationalization
 # https://docs.djangoproject.com/en/1.10/topics/i18n/