diff --git a/drivers/mfd/janz-cmodio.c b/drivers/mfd/janz-cmodio.c
index 9ed6307..36a166b 100644
--- a/drivers/mfd/janz-cmodio.c
+++ b/drivers/mfd/janz-cmodio.c
@@ -18,6 +18,7 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 #include <linux/mfd/core.h>
 
 #include <linux/mfd/janz.h>