--- a/product.json
+++ b/product.json
@@ -28,6 +28,10 @@
 	"reportIssueUrl": "https://github.com/microsoft/vscode/issues/new",
 	"urlProtocol": "code-oss",
 	"webviewContentExternalBaseUrlTemplate": "https://{{uuid}}.vscode-cdn.net/insider/3c8520fab514b9f56070214496b26ff68d1b1cb5/out/vs/workbench/contrib/webview/browser/pre/",
+	"extensionsGallery": {
+		"serviceUrl": "https://open-vsx.org/vscode/gallery",
+		"itemUrl": "https://open-vsx.org/vscode/item"
+	},
 	"builtInExtensions": [
 		{
 			"name": "ms-vscode.js-debug-companion",