diff --git a/common/tools/eslint-plugin-azure-sdk/tests/plugin.ts b/common/tools/eslint-plugin-azure-sdk/tests/plugin.ts
index 541d82be7d70..35b82be8c382 100644
--- a/common/tools/eslint-plugin-azure-sdk/tests/plugin.ts
+++ b/common/tools/eslint-plugin-azure-sdk/tests/plugin.ts
@@ -39,7 +39,6 @@ const ruleList = [
   "ts-naming-options",
   "ts-naming-subclients",
   "ts-no-const-enums",
-  "ts-no-namespaces",
   "ts-no-window",
   "ts-package-json-author",
   "ts-package-json-bugs",