diff --git a/deluge/core/core.py b/deluge/core/core.py
index 3a942fcf6..90b58ba78 100644
--- a/deluge/core/core.py
+++ b/deluge/core/core.py
@@ -137,6 +137,11 @@ class Core(component.Component):
         # GeoIP instance with db loaded
         self.geoip_instance = None
 
+        # These keys will be dropped from the set_config() RPC and are
+        # configurable from the command-line.
+        self.read_only_config_keys = read_only_config_keys
+        log.debug('read_only_config_keys: %s', read_only_config_keys)
+
         # Get the core config
         self.config = ConfigManager('core.conf')
         self.config.save()