diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c
index 368a2e19b2d4..1cae5ed944eb 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/drivers/staging/omap-thermal/omap-bandgap.c
@@ -38,6 +38,7 @@
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 #include <linux/of_irq.h>
+#include <linux/io.h>
 
 #include "omap-bandgap.h"