diff --git a/android/variable.go b/android/variable.go
index 7e3fd4dd9..9a9556314 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -183,6 +183,7 @@ type variableProperties struct {
 		Release_aidl_use_unfrozen struct {
 			Cflags          []string
 			Cmd             *string
+			Required        []string
 			Vintf_fragments []string
 		}
 	} `android:"arch_variant"`