diff --git a/mopidy_touchscreen/__init__.py b/mopidy_touchscreen/__init__.py
index 61e5572..958d584 100644
--- a/mopidy_touchscreen/__init__.py
+++ b/mopidy_touchscreen/__init__.py
@@ -24,7 +24,7 @@ class Extension(ext.Extension):
         schema = super(Extension, self).get_config_schema()
         schema['screen_width'] = config.Integer(minimum=1)
         schema['screen_height'] = config.Integer(minimum=1)
-        schema['resolution_factor'] = config.Integer(minimum=0)
+        schema['resolution_factor'] = config.Integer(minimum=6)
         schema['cursor'] = config.Boolean()
         schema['fullscreen'] = config.Boolean()
         schema['cache_dir'] = config.Path()