diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index ccc4641..ffb405d 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -31,6 +31,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 /* Transmit operation:                                                      */
 /*                                                                          */