diff --git a/.gitmodules b/.gitmodules
index 89b53d4..428ea01 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -373,3 +373,7 @@
 	url = ../oparent/cia
 	branch = .
 	ignore = dirty
+[submodule "docs/submodules/oom/offline-installer.git"]
+	path = docs/submodules/oom/offline-installer.git
+	url = ../oom/offline-installer
+	branch = casablanca