diff --git a/Documentation/ABI/testing/sysfs-devices-platform-dock b/Documentation/ABI/testing/sysfs-devices-platform-dock
index 1d8c18f905c7..411c174de830 100644
--- a/Documentation/ABI/testing/sysfs-devices-platform-dock
+++ b/Documentation/ABI/testing/sysfs-devices-platform-dock
@@ -1,4 +1,4 @@
-What:		/sys/devices/platform/dock.N/docked
+What:		/sys/devices/platform/dock.<N>/docked
 Date:		Dec, 2006
 KernelVersion:	2.6.19
 Contact:	linux-acpi@vger.kernel.org
@@ -6,7 +6,7 @@ Description:
 		(RO) Value 1 or 0 indicates whether the software believes the
 		laptop is docked in a docking station.
 
-What:		/sys/devices/platform/dock.N/undock
+What:		/sys/devices/platform/dock.<N>/undock
 Date:		Dec, 2006
 KernelVersion:	2.6.19
 Contact:	linux-acpi@vger.kernel.org
@@ -14,14 +14,14 @@ Description:
 		(WO) Writing to this file causes the software to initiate an
 		undock request to the firmware.
 
-What:		/sys/devices/platform/dock.N/uid
+What:		/sys/devices/platform/dock.<N>/uid
 Date:		Feb, 2007
 KernelVersion:	v2.6.21
 Contact:	linux-acpi@vger.kernel.org
 Description:
 		(RO) Displays the docking station the laptop is docked to.
 
-What:		/sys/devices/platform/dock.N/flags
+What:		/sys/devices/platform/dock.<N>/flags
 Date:		May, 2007
 KernelVersion:	v2.6.21
 Contact:	linux-acpi@vger.kernel.org
@@ -30,7 +30,7 @@ Description:
 		request has been made by the user (from the immediate_undock
 		option).
 
-What:		/sys/devices/platform/dock.N/type
+What:		/sys/devices/platform/dock.<N>/type
 Date:		Aug, 2008
 KernelVersion:	v2.6.27
 Contact:	linux-acpi@vger.kernel.org