diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index a3ac4c896831..7f2c99d66e9d 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -152,6 +152,7 @@
 #include <linux/sched.h>
 #include <linux/tty.h>
 #include <linux/mutex.h>
+#include <linux/sysrq.h>
 
 struct uart_port;
 struct uart_info;