diff --git a/bgpd/bgp_regex.c b/bgpd/bgp_regex.c
index 9b65f7c..13fa829 100644
--- a/bgpd/bgp_regex.c
+++ b/bgpd/bgp_regex.c
@@ -23,6 +23,7 @@
 #include "log.h"
 #include "command.h"
 #include "memory.h"
+#include "filter.h"
 
 #include "bgpd.h"
 #include "bgp_aspath.h"