diff --git a/Documentation/thinkpad-acpi.txt b/Documentation/thinkpad-acpi.txt
index 9e6b94f..b90d9a7 100644
--- a/Documentation/thinkpad-acpi.txt
+++ b/Documentation/thinkpad-acpi.txt
@@ -562,7 +562,8 @@
 2:  System board, left side (near PCMCIA slot), reported as HDAPS temp
 3:  PCMCIA slot
 9:  MCH (northbridge) to DRAM Bus
-10: ICH (southbridge), under Mini-PCI card, under touchpad
+10: Clock-generator, mini-pci card and ICH (southbridge), under Mini-PCI
+    card, under touchpad
 11: Power regulator, underside of system board, below F2 key
 
 The A31 has a very atypical layout for the thermal sensors