diff --git a/lib/libospf.h b/lib/libospf.h
index 2796209..e8db5c1 100644
--- a/lib/libospf.h
+++ b/lib/libospf.h
@@ -39,8 +39,8 @@
 #else
 #define OSPF_LS_REFRESH_TIME                  1800
 #endif
-#define OSPF_MIN_LS_INTERVAL                     5
-#define OSPF_MIN_LS_ARRIVAL                      1
+#define OSPF_MIN_LS_INTERVAL                  5000  /* msec */
+#define OSPF_MIN_LS_ARRIVAL                   1000  /* msec */
 #define OSPF_LSA_INITIAL_AGE                     0	/* useful for debug */
 #define OSPF_LSA_MAXAGE                       3600
 #define OSPF_CHECK_AGE                         300