diff --git a/Documentation/serial/serial-rs485.txt b/Documentation/serial/serial-rs485.txt
index 41c8378..39dac95 100644
--- a/Documentation/serial/serial-rs485.txt
+++ b/Documentation/serial/serial-rs485.txt
@@ -132,5 +132,5 @@
 
 5. REFERENCES
 
- [1]	include/linux/serial.h
+ [1]	include/uapi/linux/serial.h
  [2]	Documentation/devicetree/bindings/serial/rs485.txt