diff --git a/.eslintrc b/.eslintrc
index 587eaa630d7..8b2ee3650ef 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -44,7 +44,7 @@
         "@typescript-eslint/prefer-for-of": "error",
         "@typescript-eslint/prefer-function-type": "off",
         "@typescript-eslint/prefer-interface": "error",
-        "@typescript-eslint/prefer-namespace-keyword": "off",
+        "@typescript-eslint/prefer-namespace-keyword": "error",
         "semi": "off",
         "@typescript-eslint/semi": "error",
         "@typescript-eslint/type-annotation-spacing": "error",
diff --git a/scripts/word2md.ts b/scripts/word2md.ts
index 8b63b1a08ac..d2bcc437d24 100644
--- a/scripts/word2md.ts
+++ b/scripts/word2md.ts
@@ -7,8 +7,7 @@
 // as a command line argument and the resulting Markdown is written to standard output. The
 // tool recognizes the specific Word styles used in the TypeScript Language Specification.
 
-module Word {
-
+namespace Word {
     export interface Collection<T> {
         count: number;
         item(index: number): T;