diff --git a/package.json b/package.json
index 54744ca..48740e9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "oni-api",
-  "version": "0.0.40",
+  "version": "0.0.41",
   "description": "Oni's API layer",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/src/index.ts b/src/index.ts
index 79f80a8..10eab08 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -81,8 +81,14 @@ export namespace Overlays {
     }
 }
 
-export interface Workspace {
-    onDirectoryChanged: IEvent<string>
+export namespace Workspace {
+
+    export interface Api {
+        activeWorkspace: string
+        onDirectoryChanged: IEvent<string>
+
+        changeDirectory(newWorkspaceDirectory: string): void
+    }
 }
 
 export namespace Snippets {
@@ -683,6 +689,6 @@ export namespace Plugin {
         snippets: Snippets.SnippetManager
         statusBar: StatusBar
         windows: IWindowManager
-        workspace: Workspace
+        workspace: Workspace.Api
     }
 }