diff --git a/src/libcharon/plugins/vici/python/vici/command_wrappers.py b/src/libcharon/plugins/vici/python/vici/command_wrappers.py
index a2e8fa932..6b9e30c35 100644
--- a/src/libcharon/plugins/vici/python/vici/command_wrappers.py
+++ b/src/libcharon/plugins/vici/python/vici/command_wrappers.py
@@ -310,7 +310,7 @@ class CommandWrappers(object):
         """
         self.request("unload-pool", pool_name)
 
-    def get_pools(self, options):
+    def get_pools(self, options=None):
         """Retrieve loaded pools.
 
         :param options: filter by name and/or retrieve leases (optional)