diff --git a/conf/app.src b/conf/app.src
index 70ec7d5..0ae9db3 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -3,3 +3,4 @@ SOURCE_SUM=2d1f7e174129164fbb4474188dac0b5f358c14e01f5feacf69ec342cf58ff925
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
+SOURCE_FILENAME=