diff --git a/conf/app.src b/conf/app.src
index b17fc11..85d8262 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,6 +1,6 @@
 SOURCE_URL=https://github.com/paperless-ngx/paperless-ngx/releases/download/v1.14.3/paperless-ngx-v1.14.3.tar.xz
 SOURCE_SUM=d5c34766e6ec15e70a2d5f87bb3ed2369b4f7e09b5e22c576463b44cbb072817
 SOURCE_SUM_PRG=sha256sum
-SOURCE_FORMAT=xz
+SOURCE_FORMAT=tar.xz
 SOURCE_IN_SUBDIR=true
 SOURCE_FILENAME=