diff --git a/conf/app.src b/conf/app.src
index e4dd89f..17489bf 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -4,3 +4,4 @@ SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
 SOURCE_FILENAME=
+SOURCE_EXTRACT=true