diff --git a/project.properties b/project.properties
index cea64a977..0cb8bf2d7 100644
--- a/project.properties
+++ b/project.properties
@@ -1,2 +1,4 @@
+proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
+
 target=android-17