diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index 8cbeff02145..467f24620cf 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -18,11 +18,11 @@ declare module 'vscode' {
 
 	//#region Joh - vscode.open
 
-	export namespace window {
+	export namespace env {
 		/**
 		 *
 		 */
-		export function open(uri: Uri): void;
+		export function openItem(uri: Uri): void;
 	}
 
 	//#endregion
diff --git a/src/vs/workbench/api/node/extHost.api.impl.ts b/src/vs/workbench/api/node/extHost.api.impl.ts
index 6cb7c089487..86fc24670b2 100644
--- a/src/vs/workbench/api/node/extHost.api.impl.ts
+++ b/src/vs/workbench/api/node/extHost.api.impl.ts
@@ -255,7 +255,10 @@ export function createApiFactory(
 			},
 			get clipboard(): vscode.Clipboard {
 				return extHostClipboard;
-			}
+			},
+			openItem: proposedApiFunction(extension, (uri: URI) => {
+				return extHostWindow.openUri(uri);
+			})
 		});
 
 		// namespace: extensions
@@ -496,10 +499,7 @@ export function createApiFactory(
 			},
 			createInputBox(): vscode.InputBox {
 				return extHostQuickOpen.createInputBox(extension.identifier);
-			},
-			open: proposedApiFunction(extension, (uri: URI) => {
-				return extHostWindow.openUri(uri);
-			})
+			}
 		};
 
 		// namespace: workspace