diff --git a/entrypoint.sh b/entrypoint.sh
index d0a4648..83f6e53 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -36,4 +36,4 @@ catalyst -c /var/lib/catalyst/catalyst.conf -f /stage2.spec
 catalyst -c /var/lib/catalyst/catalyst.conf -f /stage3.spec
 
 # Build custom packages
-catalyst -c /var/lib/catalyst/catalyst.conf -f /var/lib/catalyst/build.spec
+catalyst -c /var/lib/catalyst/catalyst.conf -f /var/lib/catalyst/stage4.spec