diff --git a/sys/netgraph/netflow/ng_netflow.c b/sys/netgraph/netflow/ng_netflow.c
index f0cb8679269..c67d90b098e 100644
--- a/sys/netgraph/netflow/ng_netflow.c
+++ b/sys/netgraph/netflow/ng_netflow.c
@@ -33,6 +33,7 @@ static const char rcs_id[] =
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
+#include <sys/limits.h>
 #include <sys/mbuf.h>
 #include <sys/socket.h>
 #include <sys/syslog.h>
diff --git a/sys/netgraph/netflow/ng_netflow.h b/sys/netgraph/netflow/ng_netflow.h
index 72b75db085b..bd35cf09281 100644
--- a/sys/netgraph/netflow/ng_netflow.h
+++ b/sys/netgraph/netflow/ng_netflow.h
@@ -34,7 +34,7 @@
 #define NG_NETFLOW_NODE_TYPE	"netflow"
 #define NGM_NETFLOW_COOKIE	1137078102
 
-#define	NG_NETFLOW_MAXIFACES	2048
+#define	NG_NETFLOW_MAXIFACES	USHRT_MAX
 
 /* Hook names */