diff --git a/nonfree/controller/CentralDB.cpp b/nonfree/controller/CentralDB.cpp
index 4ae23a01b..aea8f5f78 100644
--- a/nonfree/controller/CentralDB.cpp
+++ b/nonfree/controller/CentralDB.cpp
@@ -1442,7 +1442,8 @@ void CentralDB::onlineNotificationThread()
 				std::string memberId(memTmp);
 
 				try {
-					"SELECT device_id, network_id FROM network_memberships_ctl WHERE network_id = $1 AND device_id "
+					pqxx::row r = w2.exec_params1(
+						"SELECT device_id, network_id FROM network_memberships_ctl WHERE network_id = $1 AND device_id "
 						"= $2",
 						networkId, memberId);
 				}