diff --git a/build/gulpfile.vscode.web.js b/build/gulpfile.vscode.web.js
index bb67d883253..1765a6509a7 100644
--- a/build/gulpfile.vscode.web.js
+++ b/build/gulpfile.vscode.web.js
@@ -116,7 +116,7 @@ const createVSCodeWebBuiltinExtensionsPatcher = (extensionsRoot) => {
 		// (2) Patch builtin extensions
 		if (path.endsWith('vs/workbench/services/extensionManagement/browser/builtinExtensionsScannerService.js')) {
 			const builtinExtensions = JSON.stringify(extensions.scanBuiltinExtensions(extensionsRoot));
-			return content.replace('/*BUILD->INSERT_BUILTIN_EXTENSIONS*/', builtinExtensions.substr(1, builtinExtensions.length - 2) /* without [ and ]*/);
+			return content.replace('/*BUILD->INSERT_BUILTIN_EXTENSIONS*/', () => builtinExtensions.substr(1, builtinExtensions.length - 2) /* without [ and ]*/);
 		}
 
 		return content;
diff --git a/src/vs/platform/extensionManagement/electron-sandbox/extensionTipsService.ts b/src/vs/platform/extensionManagement/electron-sandbox/extensionTipsService.ts
index 9d8760e2145..d96b9c0ee58 100644
--- a/src/vs/platform/extensionManagement/electron-sandbox/extensionTipsService.ts
+++ b/src/vs/platform/extensionManagement/electron-sandbox/extensionTipsService.ts
@@ -298,11 +298,11 @@ export class ExtensionTipsService extends BaseExtensionTipsService {
 			const exePaths: string[] = [];
 			if (isWindows) {
 				if (extensionTip.windowsPath) {
-					exePaths.push(extensionTip.windowsPath.replace('%USERPROFILE%', env['USERPROFILE']!)
-						.replace('%ProgramFiles(x86)%', env['ProgramFiles(x86)']!)
-						.replace('%ProgramFiles%', env['ProgramFiles']!)
-						.replace('%APPDATA%', env['APPDATA']!)
-						.replace('%WINDIR%', env['WINDIR']!));
+					exePaths.push(extensionTip.windowsPath.replace('%USERPROFILE%', () => env['USERPROFILE']!)
+						.replace('%ProgramFiles(x86)%', () => env['ProgramFiles(x86)']!)
+						.replace('%ProgramFiles%', () => env['ProgramFiles']!)
+						.replace('%APPDATA%', () => env['APPDATA']!)
+						.replace('%WINDIR%', () => env['WINDIR']!));
 				}
 			} else {
 				exePaths.push(join('/usr/local/bin', exeName));
diff --git a/src/vs/workbench/contrib/extensions/browser/fileBasedRecommendations.ts b/src/vs/workbench/contrib/extensions/browser/fileBasedRecommendations.ts
index 57b4387c1c7..5dc23e11fba 100644
--- a/src/vs/workbench/contrib/extensions/browser/fileBasedRecommendations.ts
+++ b/src/vs/workbench/contrib/extensions/browser/fileBasedRecommendations.ts
@@ -275,7 +275,7 @@ export class FileBasedRecommendations extends ExtensionRecommendations {
 		}
 
 		const treatmentMessage = await this.tasExperimentService.getTreatment<string>('languageRecommendationMessage');
-		const message = treatmentMessage ? treatmentMessage.replace('{0}', name) : localize('reallyRecommended', "Do you want to install the recommended extensions for {0}?", name);
+		const message = treatmentMessage ? treatmentMessage.replace('{0}', () => name) : localize('reallyRecommended', "Do you want to install the recommended extensions for {0}?", name);
 
 		this.extensionRecommendationNotificationService.promptImportantExtensionsInstallNotification([extensionId], message, `@id:${extensionId}`, RecommendationSource.FILE)
 			.then(result => {