diff --git a/flatpak/org.prismlauncher.PrismLauncher.yml b/flatpak/org.prismlauncher.PrismLauncher.yml
index fca306d7..071772c6 100644
--- a/flatpak/org.prismlauncher.PrismLauncher.yml
+++ b/flatpak/org.prismlauncher.PrismLauncher.yml
@@ -39,6 +39,7 @@ modules:
     sources:
         - type: dir
           path: ../
+    builddir: true
   - name: openjdk
     buildsystem: simple
     build-commands: