diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c
index 37b9fda..594c9a8 100644
--- a/drivers/mfd/htc-i2cpld.c
+++ b/drivers/mfd/htc-i2cpld.c
@@ -35,6 +35,7 @@
 #include <linux/spinlock.h>
 #include <linux/htcpld.h>
 #include <linux/gpio.h>
+#include <linux/slab.h>
 
 struct htcpld_chip {
 	spinlock_t              lock;