diff --git a/types/node/index.d.ts b/types/node/index.d.ts
index 221dd5baad..66c319c895 100644
--- a/types/node/index.d.ts
+++ b/types/node/index.d.ts
@@ -2501,7 +2501,7 @@ declare module "readline" {
 }
 
 declare module "vm" {
-    interface Context { 
+    interface Context {
         [key: string]: any;
     }
     interface BaseOptions {
diff --git a/types/node/node-tests.ts b/types/node/node-tests.ts
index 0ae3866a8a..7e3c491802 100644
--- a/types/node/node-tests.ts
+++ b/types/node/node-tests.ts
@@ -3676,11 +3676,11 @@ import * as p from "process";
             throw new repl.Recoverable(new Error("test"));
         }
 
-        _server.context.key0 = 1;
-        _server.context.key1 = "string";
-        _server.context.key2 = true;
-        _server.context.key3 = [];
-        _server.context.key4 = {};
+        _server.context['key0'] = 1;
+        _server.context['key1'] = "";
+        _server.context['key2'] = true;
+        _server.context['key3'] = [];
+        _server.context['key4'] = {};
     }
 }
 
diff --git a/types/node/v9/index.d.ts b/types/node/v9/index.d.ts
index b620ac9ce1..3660d87725 100644
--- a/types/node/v9/index.d.ts
+++ b/types/node/v9/index.d.ts
@@ -2390,7 +2390,7 @@ declare module "readline" {
 }
 
 declare module "vm" {
-    export interface Context { 
+    export interface Context {
         [key: string]: any;
     }
     export interface ScriptOptions {