diff --git a/include/linux/serial_s3c.h b/include/linux/serial_s3c.h
index 907d9d1d56cf012cdbb04ed39e9aa3f1bd2cd2ad..e6fc9567690bc6d5fe59ac0dfcc88cbeaac01fc8 100644
--- a/include/linux/serial_s3c.h
+++ b/include/linux/serial_s3c.h
@@ -233,6 +233,8 @@
 
 #ifndef __ASSEMBLY__
 
+#include <linux/serial_core.h>
+
 /* configuration structure for per-machine configurations for the
  * serial port
  *