diff --git a/android/arch.go b/android/arch.go
index 942727a..d9ecb50 100644
--- a/android/arch.go
+++ b/android/arch.go
@@ -138,6 +138,13 @@
 	return a.Name
 }
 
+func (a ArchType) Bitness() string {
+	if a.Multilib == "lib32" {
+		return "32"
+	}
+	return "64"
+}
+
 const COMMON_VARIANT = "common"
 
 var (