diff --git a/bgpd/bgp_debug.c b/bgpd/bgp_debug.c
index 1d09769..e3e5ca4 100644
--- a/bgpd/bgp_debug.c
+++ b/bgpd/bgp_debug.c
@@ -28,6 +28,7 @@
 #include "str.h"
 #include "log.h"
 #include "sockunion.h"
+#include "filter.h"
 
 #include "bgpd/bgpd.h"
 #include "bgpd/bgp_aspath.h"