diff --git a/addons/web/tooling/_eslintrc.json b/addons/web/tooling/_eslintrc.json
index 308fb6eb1c8..69c1b8c27f5 100644
--- a/addons/web/tooling/_eslintrc.json
+++ b/addons/web/tooling/_eslintrc.json
@@ -30,6 +30,7 @@
     "valid-typeof": ["error"],
     "no-unused-vars": ["error", { "vars": "all", "args": "none", "ignoreRestSiblings": false, "caughtErrors": "all" }],
     "curly": ["error", "all"],
+    "no-restricted-syntax": ["error", "PrivateIdentifier"],
     "prefer-const": ["error", {
       "destructuring": "all",
       "ignoreReadBeforeAssign": true
diff --git a/odoo/addons/test_lint/tests/eslintrc b/odoo/addons/test_lint/tests/eslintrc
index fa659db7f0d..168bc1f0918 100644
--- a/odoo/addons/test_lint/tests/eslintrc
+++ b/odoo/addons/test_lint/tests/eslintrc
@@ -19,6 +19,7 @@
         "no-unsafe-negation": ["error"],
         "no-duplicate-imports": ["error"],
         "valid-typeof": ["error"],
+        "no-restricted-syntax": ["error", "PrivateIdentifier"],
         "no-unused-vars": ["error", { "vars": "all", "args": "none", "ignoreRestSiblings": false, "caughtErrors": "all" }]
     },
     "globals": {