diff --git a/nca/FWRules/MinimizeCsFWRulesOpt.py b/nca/FWRules/MinimizeCsFWRulesOpt.py
index 6b7d488b..92e968f6 100644
--- a/nca/FWRules/MinimizeCsFWRulesOpt.py
+++ b/nca/FWRules/MinimizeCsFWRulesOpt.py
@@ -41,7 +41,7 @@ def compute_minimized_fw_rules_per_connection(self, connections, peer_props,
         """
         The main function for creating the minimized set of fw-rules for a given connection set
 
-        :param connections: the allowed connections for the given peer pairs, of type ConnectionSet
+        :param ConnectionSet connections: the allowed connections for the given peer pairs, of type ConnectionSet
         :param ConnectivityProperties peer_props: peers (src,dst) for which communication is allowed over the given connections
         :param ConnectivityProperties peer_props_in_containing_connections: peers in connections that contain the current
                connection set