diff --git a/src/acpi/dsdt_top.asl b/src/acpi/dsdt_top.asl
index 853b087..761c1b5 100644
--- a/src/acpi/dsdt_top.asl
+++ b/src/acpi/dsdt_top.asl
@@ -1 +1,3 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <acpi/acpigen_extern.asl>