diff --git a/src/add-ons/kernel/bus_managers/acpi/include/platform/achaiku.h b/src/add-ons/kernel/bus_managers/acpi/include/platform/achaiku.h
index f1e32d035b..cd28894d77 100644
--- a/src/add-ons/kernel/bus_managers/acpi/include/platform/achaiku.h
+++ b/src/add-ons/kernel/bus_managers/acpi/include/platform/achaiku.h
@@ -137,7 +137,7 @@
 
 #include <string.h>
 #include <ctype.h>
-#include <va_list.h>
+#include <stdarg.h>
 
 #define asm         __asm