diff --git a/source/indepth/standalone_engines.md.erb b/source/indepth/standalone_engines.md.erb
index c2e0b013..d55a974c 100644
--- a/source/indepth/standalone_engines.md.erb
+++ b/source/indepth/standalone_engines.md.erb
@@ -1,4 +1,4 @@
----
+bcad0446---
 title: Passenger Standalone engines
 section: indepth
 ---