diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.c b/drivers/net/wireless/rt2x00/rt2x00debug.c
index 28a1c46..9569fb4 100644
--- a/drivers/net/wireless/rt2x00/rt2x00debug.c
+++ b/drivers/net/wireless/rt2x00/rt2x00debug.c
@@ -28,6 +28,7 @@
 #include <linux/module.h>
 #include <linux/poll.h>
 #include <linux/sched.h>
+#include <linux/slab.h>
 #include <linux/uaccess.h>
 
 #include "rt2x00.h"