diff --git a/net/ipfrag/ipfrag.c b/net/ipfrag/ipfrag.c
index 00dc662fae..c936f88ea9 100644
--- a/net/ipfrag/ipfrag.c
+++ b/net/ipfrag/ipfrag.c
@@ -192,7 +192,7 @@ static void ip_fragin_timerout_expiry(wdparm_t arg)
 static void ip_fragin_timerwork(FAR void *arg)
 {
   clock_t curtick = clock_systime_ticks();
-  sclock_t interval;
+  sclock_t interval = 0;
   FAR sq_entry_t *entry;
   FAR sq_entry_t *entrynext;
   FAR struct ip_fragsnode_s *node;