diff --git a/java/dexpreopt_bootjars.go b/java/dexpreopt_bootjars.go
index 479dd45..003f2de 100644
--- a/java/dexpreopt_bootjars.go
+++ b/java/dexpreopt_bootjars.go
@@ -386,7 +386,7 @@
 	m := image.modules.Jar(idx)
 	name := image.stem
 	if idx != 0 || image.extends != nil {
-		name += "-" + android.ModuleStem(m)
+		name += "-" + android.ModuleStem(ctx.Config(), image.modules.Apex(idx), m)
 	}
 	return name
 }