1 files changed, 2 insertions, 0 deletions
diff --git a/src/vs/workbench/contrib/extensions/common/extensions.ts b/src/vs/workbench/contrib/extensions/common/extensions.ts
index 60c5b415c54..ca1a3a5ff3f 100644
--- a/src/vs/workbench/contrib/extensions/common/extensions.ts
+++ b/src/vs/workbench/contrib/extensions/common/extensions.ts
@@ -107,6 +107,8 @@ export interface IExtensionsWorkbenchService {
 	uninstall(extension: IExtension): Promise<void>;
 	installVersion(extension: IExtension, version: string, installOptions?: InstallOptions): Promise<IExtension>;
 	reinstall(extension: IExtension): Promise<IExtension>;
+	canSetLanguage(extension: IExtension): boolean;
+	setLanguage(extension: IExtension): Promise<void>;
 	setEnablement(extensions: IExtension | IExtension[], enablementState: EnablementState): Promise<void>;
 	open(extension: IExtension, options?: IExtensionEditorOptions): Promise<void>;
 	checkForUpdates(): Promise<void>;