diff --git a/android/prebuilt_test.go b/android/prebuilt_test.go
index 27a68fb..d31fc4f 100644
--- a/android/prebuilt_test.go
+++ b/android/prebuilt_test.go
@@ -551,6 +551,9 @@
 }
 
 func (s *sourceModule) Srcs() Paths {
+	if s.src == nil {
+		return nil
+	}
 	return Paths{s.src}
 }