diff --git a/_Sidebar.md b/_Sidebar.md
index b58af7e..da40934 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -59,8 +59,12 @@
 
 [Campaign maintenance](Campaign-maintenance)
 
+### Core development guides
+
 [Developer's Guide](Developer's-Guide)
 
+[[Adding a new aircraft module|New-aircraft-module-checklist]]
+
 [Release process](Release-process)
 
 ## Misc