diff --git a/share/man/man4/acpi.4 b/share/man/man4/acpi.4
index 358a75ccadd8..b54d00c3cbda 100644
--- a/share/man/man4/acpi.4
+++ b/share/man/man4/acpi.4
@@ -32,7 +32,7 @@
 .Nm acpi
 .Nd Advanced Configuration and Power Management support
 .Sh SYNOPSIS
-.Cd device acpica
+.Cd device acpi
 .Pp
 .Cd options ACPI_DEBUG
 .Sh DESCRIPTION