diff --git a/roles/dokuwiki/defaults/main.json b/roles/dokuwiki/defaults/main.json
index 686905f..a4bfd21 100644
--- a/roles/dokuwiki/defaults/main.json
+++ b/roles/dokuwiki/defaults/main.json
@@ -3,6 +3,7 @@
 	"var_dokuwiki_title": "DokuWiki",
 	"var_dokuwiki_language": "en",
 	"var_dokuwiki_licence": "cc-by-sa",
+	"var_dokuwiki_oauth2_enable": false,
 	"var_dokuwiki_authentication_kind": "internal",
 	"var_dokuwiki_authentication_data_generic_auth_url": "https://auth.example.org/api/oidc/authorize",
 	"var_dokuwiki_authentication_data_generic_token_url": "https://auth.example.org/api/oidc/token",
diff --git a/roles/dokuwiki/vardef.json b/roles/dokuwiki/vardef.json
index 4035f77..6aed9d6 100644
--- a/roles/dokuwiki/vardef.json
+++ b/roles/dokuwiki/vardef.json
@@ -15,6 +15,10 @@
 		"type": "string",
 		"mandatory": false
 	},
+	"oauth2_enable": {
+		"type": "boolean",
+		"mandatory": false
+	},
 	"authentication_kind": {
 		"type": "string",
 		"options": [