diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index 587b0cb..a48ccaf 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -4,6 +4,7 @@
 #include <linux/delay.h>
 #include <linux/mm.h>
 #include <linux/string.h>
+#include <linux/slab.h>
 #include <net/iw_handler.h>
 #include <net/lib80211.h>