diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c
index 30e4e1fd4b04..399728618fb9 100644
--- a/drivers/net/wireless/ath/ath5k/debug.c
+++ b/drivers/net/wireless/ath/ath5k/debug.c
@@ -62,6 +62,7 @@
 
 #include <linux/export.h>
 #include <linux/moduleparam.h>
+#include <linux/vmalloc.h>
 
 #include <linux/seq_file.h>
 #include <linux/list.h>