diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index f88577c..5e19a7b 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -31,6 +31,7 @@
 #include <linux/i2c-id.h>
 #include <linux/mod_devicetable.h>
 #include <linux/device.h>	/* for struct device */
+#include <linux/sched.h>	/* for completion */
 #include <asm/semaphore.h>
 
 /* --- For i2c-isa ---------------------------------------------------- */