diff --git a/check_process b/check_process
index 4c26124..95d7e02 100644
--- a/check_process
+++ b/check_process
@@ -1,5 +1,6 @@
 ;; Test complet
 	; Manifest
+		warning="Understood"
 		domain="domain.tld"	(DOMAIN)
 		admin="john"	(USER)
 		language="fr"
diff --git a/manifest.json b/manifest.json
index 2b05fde..5fe7b8c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -21,6 +21,15 @@
     ],
     "arguments": {
         "install" : [
+            {
+                "name": "warning",
+                "type": "string",
+                "ask": {
+                    "text": "\nMobilizon is in early development, a lot of features are not implemented.\n\nFor advanced testing use only.\n\n"
+                },
+                "choices": ["Understood"],
+                "default": "Understood"
+            },
             {
                 "name": "domain",
                 "type": "domain",