diff --git a/pimd/pim_iface.c b/pimd/pim_iface.c
index 009f87c..7806c80 100644
--- a/pimd/pim_iface.c
+++ b/pimd/pim_iface.c
@@ -38,6 +38,7 @@
 #include "pim_ifchannel.h"
 #include "pim_rand.h"
 #include "pim_sock.h"
+#include "pim_ssmpingd.h"
 
 static void pim_if_igmp_join_del_all(struct interface *ifp);