diff --git a/java/app.go b/java/app.go
index 3c8f847..cf9354f 100644
--- a/java/app.go
+++ b/java/app.go
@@ -482,7 +482,7 @@
 	return jniLibs, certificates
 }
 
-func (a *AndroidApp) getCertString(ctx android.BaseContext) string {
+func (a *AndroidApp) getCertString(ctx android.BaseModuleContext) string {
 	certificate, overridden := ctx.DeviceConfig().OverrideCertificateFor(ctx.ModuleName())
 	if overridden {
 		return ":" + certificate