diff --git a/src/userdb/userwork.c b/src/userdb/userwork.c
index e9b0ac20e0e..b5b76c51e19 100644
--- a/src/userdb/userwork.c
+++ b/src/userdb/userwork.c
@@ -353,9 +353,9 @@ static int vl_method_get_group_record(Varlink *link, JsonVariant *parameters, Va
 
 static int vl_method_get_memberships(Varlink *link, JsonVariant *parameters, VarlinkMethodFlags flags, void *userdata) {
         static const JsonDispatch dispatch_table[] = {
-                { "userName",  JSON_VARIANT_STRING, json_dispatch_const_string, offsetof(LookupParameters, user_name), 0 },
+                { "userName",  JSON_VARIANT_STRING, json_dispatch_const_string, offsetof(LookupParameters, user_name),  0 },
                 { "groupName", JSON_VARIANT_STRING, json_dispatch_const_string, offsetof(LookupParameters, group_name), 0 },
-                { "service",   JSON_VARIANT_STRING, json_dispatch_const_string, offsetof(LookupParameters, service),   0 },
+                { "service",   JSON_VARIANT_STRING, json_dispatch_const_string, offsetof(LookupParameters, service),    0 },
                 {}
         };