diff --git a/net/sctp/output.c b/net/sctp/output.c
index 7c55893..fad261d 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -48,6 +48,7 @@
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <net/inet_ecn.h>
 #include <net/ip.h>
 #include <net/icmp.h>