diff --git a/src/netif/bridgeif_fdb.c b/src/netif/bridgeif_fdb.c
index 70ffeda1..6739fc24 100644
--- a/src/netif/bridgeif_fdb.c
+++ b/src/netif/bridgeif_fdb.c
@@ -43,6 +43,7 @@
 
 #include "netif/bridgeif.h"
 #include "lwip/sys.h"
+#include "lwip/mem.h"
 #include "lwip/timeouts.h"
 #include <string.h>