diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index e26d5cf30a1f5..d37ddde8bf8fe 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -1001,6 +1001,11 @@ struct acpi_table_gtdt {
 #define ACPI_GTDT_INTERRUPT_POLARITY    (1<<1)
 #define ACPI_GTDT_ALWAYS_ON             (1<<2)
 
+struct acpi_gtdt_el2 {
+	u32 virtual_el2_timer_gsiv;
+	u32 virtual_el2_timer_flags;
+};
+
 /* Common GTDT subtable header */
 
 struct acpi_gtdt_header {