diff --git a/share/man/man4/acpi.4 b/share/man/man4/acpi.4
index 69c1837adf53..40b892def4e3 100644
--- a/share/man/man4/acpi.4
+++ b/share/man/man4/acpi.4
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd March 9, 2010
+.Dd June 2, 2010
 .Dt ACPI 4
 .Os
 .Sh NAME
@@ -599,10 +599,8 @@ The
 .Nm
 CPU idle power management drive conflicts with the local APIC (LAPIC)
 timer.
-Disable APIC mode with
-.Va hint.apic.0.disabled
+Disable the local APIC timer with
+.Va hint.apic.0.clock=0
 or do not use the
-.Li C2
-and
 .Li C3
-states if APIC mode is enabled.
+and deeper states if the local APIC timer is enabled.