1 files changed, 1 insertions, 1 deletions

diff --git a/include/opkele/types.h b/include/opkele/types.h
index 4e1415f..de44a5c 100644
--- a/include/opkele/types.h
+++ b/include/opkele/types.h
@@ -178,13 +178,13 @@ namespace opkele {
     ostream& operator << (ostream& o,const params_t& p);
 
     namespace xrd {
 
         struct priority_compare {
             inline bool operator()(long a,long b) const {
-                return (a<0) ? false : (b<0) ? false : (a<b);
+                return (a<0) ? false : (b<0) ? true : (a<b);
             }
         };
 
         template <typename _DT>
             class priority_map : public multimap<long,_DT,priority_compare> {
                 typedef multimap<long,_DT,priority_compare> map_type;