diff --git a/android/variable.go b/android/variable.go
index 2686049..2763bf2 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -250,6 +250,8 @@
 	VendorVars map[string]map[string]string `json:",omitempty"`
 
 	Ndk_abis *bool `json:",omitempty"`
+
+	FlattenApex *bool `json:",omitempty"`
 }
 
 func boolPtr(v bool) *bool {