diff --git a/.gitmodules b/.gitmodules
index d375f43..e2aa474 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -294,3 +294,7 @@
 	path = backend/libs/powsybl-optimizer
 	url = https://github.com/powsybl/powsybl-optimizer
 	branch = main
+[submodule "frontend/apps/gridadmin-app"]
+	path = frontend/apps/gridadmin-app
+	url = https://github.com/gridsuite/gridadmin-app.git
+	branch = main
diff --git a/frontend/apps/gridadmin-app b/frontend/apps/gridadmin-app
new file mode 160000
index 0000000..371068e
--- /dev/null
+++ b/frontend/apps/gridadmin-app
@@ -0,0 +1 @@
+Subproject commit 371068ea97793bfb250937b38734ad069a88c2a3