diff --git a/sys/i386/conf/NOTES b/sys/i386/conf/NOTES
index 4f81fc056e07..8ac64f0d6ad3 100644
--- a/sys/i386/conf/NOTES
+++ b/sys/i386/conf/NOTES
@@ -449,6 +449,9 @@ device		acpi_asus
 # ACPI Fujitsu Extras (Buttons)
 device		acpi_fujitsu
 
+# ACPI extras driver for IBM laptops
+device         acpi_ibm
+
 # ACPI Panasonic Extras (LCD backlight/brightness, video output, etc.)
 device		acpi_panasonic