diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c
index 30e4e1fd4b049709806011999782d3ba82ab78f4..bc996757114f12178d0ccb9e41a42a92beacfadc 100644
--- a/drivers/net/wireless/ath/ath5k/debug.c
+++ b/drivers/net/wireless/ath/ath5k/debug.c
@@ -65,6 +65,7 @@
 
 #include <linux/seq_file.h>
 #include <linux/list.h>
+#include <linux/vmalloc.h>
 #include "debug.h"
 #include "ath5k.h"
 #include "reg.h"