diff --git a/packages/plugin-ext-vscode/src/node/plugin-vscode-init.ts b/packages/plugin-ext-vscode/src/node/plugin-vscode-init.ts
index 9392b32ce6bb0..91b72ecdb2f12 100644
--- a/packages/plugin-ext-vscode/src/node/plugin-vscode-init.ts
+++ b/packages/plugin-ext-vscode/src/node/plugin-vscode-init.ts
@@ -28,11 +28,6 @@ let defaultApi: typeof theia;
 let isLoadOverride = false;
 let pluginApiFactory: PluginAPIFactory;
 
-export enum ExtensionKind {
-    UI = 1,
-    Workspace = 2
-}
-
 export const doInitialization: BackendInitializationFn = (apiFactory: PluginAPIFactory, plugin: Plugin) => {
     pluginsApiImpl.set(plugin.model.id, createVSCodeAPI(apiFactory, plugin));
     plugins.push(plugin);
@@ -45,20 +40,7 @@ export const doInitialization: BackendInitializationFn = (apiFactory: PluginAPIF
 };
 
 function createVSCodeAPI(apiFactory: PluginAPIFactory, plugin: Plugin): typeof theia {
-    const vscode = Object.assign(apiFactory(plugin), { ExtensionKind });
-
-    // use Theia plugin api to implement vscode extensions api
-    (<any>vscode).extensions = {
-        get all(): any[] {
-            return vscode.plugins.all;
-        },
-        getExtension(pluginId: string): any | undefined {
-            return vscode.plugins.getPlugin(pluginId);
-        },
-        get onDidChange(): theia.Event<void> {
-            return vscode.plugins.onDidChange;
-        }
-    };
+    const vscode = apiFactory(plugin);
 
     // override the version for vscode to be a VSCode version
     (<any>vscode).version = process.env['VSCODE_API_VERSION'] || VSCODE_DEFAULT_API_VERSION;