diff --git a/android/config.go b/android/config.go
index 1d3fba2..483ec91 100644
--- a/android/config.go
+++ b/android/config.go
@@ -152,8 +152,10 @@
 }
 
 // TestConfig returns a Config object suitable for using for tests
-func TestConfig() Config {
-	return Config{&config{}}
+func TestConfig(buildDir string) Config {
+	return Config{&config{
+		buildDir: buildDir,
+	}}
 }
 
 // New creates a new Config object.  The srcDir argument specifies the path to