diff --git a/src/vs/vscode.d.ts b/src/vs/vscode.d.ts
index 216ad0dcde2..81b5fce5fcd 100644
--- a/src/vs/vscode.d.ts
+++ b/src/vs/vscode.d.ts
@@ -6640,7 +6640,7 @@ declare module 'vscode' {
 		 * be able to handle uris which are directed to the extension itself. A uri must respect
 		 * the following rules:
 		 *
-		 * - The uri-scheme must be the product name;
+		 * - The uri-scheme must be `vscode.env.uriScheme`;
 		 * - The uri-authority must be the extension id (eg. `my.extension`);
 		 * - The uri-path, -query and -fragment parts are arbitrary.
 		 *
diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index 3919943503b..409a752ec8a 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -623,6 +623,11 @@ declare module 'vscode' {
 		 * An [event](#Event) that fires when the log level has changed.
 		 */
 		export const onDidChangeLogLevel: Event<LogLevel>;
+
+		/**
+		 * The custom uri scheme the editor registers to in the operating system, like 'vscode', 'vscode-insiders'.
+		 */
+		export const uriScheme: string;
 	}
 
 	//#endregion
diff --git a/src/vs/workbench/api/node/extHost.api.impl.ts b/src/vs/workbench/api/node/extHost.api.impl.ts
index 67be3ea59bc..163d9dd0ea3 100644
--- a/src/vs/workbench/api/node/extHost.api.impl.ts
+++ b/src/vs/workbench/api/node/extHost.api.impl.ts
@@ -235,6 +235,7 @@ export function createApiFactory(
 			get language() { return platform.language!; },
 			get appName() { return product.nameLong; },
 			get appRoot() { return initData.environment.appRoot!.fsPath; },
+			get uriScheme() { return product.urlProtocol; },
 			get logLevel() {
 				checkProposedApiEnabled(extension);
 				return typeConverters.LogLevel.to(extHostLogService.getLevel());