diff --git a/tests/project.properties b/tests/project.properties
index 8f51418b2..0ae0e5e97 100644
--- a/tests/project.properties
+++ b/tests/project.properties
@@ -11,3 +11,4 @@
 split.density=false
 # Project target.
 target=android-14
+android.library.reference.1=../api/