diff --git a/pimd/pimd.c b/pimd/pimd.c
index e8afe77..f1a084f 100644
--- a/pimd/pimd.c
+++ b/pimd/pimd.c
@@ -56,6 +56,7 @@
 struct thread            *qpim_rpf_cache_refresher = 0;
 int64_t                   qpim_rpf_cache_refresh_requests = 0;
 int64_t                   qpim_rpf_cache_refresh_events = 0;
+int64_t                   qpim_rpf_cache_refresh_last =  0;
 struct in_addr            qpim_inaddr_any;
 
 static void pim_free()