diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index ef511df2c9656528737be5b13f12e496d3722a94..8bbd6ece7c41ede0a3040577db4b6116d6aa61bb 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -37,6 +37,7 @@
 #include <linux/stddef.h>
 #include <linux/ioport.h>
 #include <linux/i2c.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/dmi.h>
 #include <linux/acpi.h>