diff --git a/net/rds/ib.c b/net/rds/ib.c
index 3b89923..8f2d6dd 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -37,6 +37,7 @@
 #include <linux/inetdevice.h>
 #include <linux/if_arp.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 
 #include "rds.h"
 #include "ib.h"