diff --git a/patroni/config_generator.py b/patroni/config_generator.py
index c2b133c6..3593bea3 100644
--- a/patroni/config_generator.py
+++ b/patroni/config_generator.py
@@ -178,7 +178,7 @@ class AbstractConfigGenerator(abc.ABC):
 
         :yields: formatted lines or blocks that represent a text output of the YAML document.
         """
-        for name in ('scope', 'namespace', 'name', 'log', 'restapi', 'ctl' 'citus',
+        for name in ('scope', 'namespace', 'name', 'log', 'restapi', 'ctl', 'citus',
                      'consul', 'etcd', 'etcd3', 'exhibitor', 'kubernetes', 'raft', 'zookeeper'):
             yield from self._format_config_section(name)