diff --git a/build/gulpfile.vscode.js b/build/gulpfile.vscode.js
index 04c168cb1a6..25b41bd3a91 100644
--- a/build/gulpfile.vscode.js
+++ b/build/gulpfile.vscode.js
@@ -211,7 +211,7 @@ function packageTask(platform, arch, sourceFolderName, destinationFolderName, op
 		const deps = gulp.src(dependenciesSrc, { base: '.', dot: true })
 			.pipe(filter(['**', '!**/package-lock.json']))
 			.pipe(util.cleanNodeModules(path.join(__dirname, '.nativeignore')))
-			.pipe(createAsar(path.join(process.cwd(), 'node_modules'), ['**/*.node', '**/vscode-ripgrep/bin/*', '**/node-pty/build/Release/*'], 'app/node_modules.asar'));
+			.pipe(createAsar(path.join(process.cwd(), 'node_modules'), ['**/*.node', '**/vscode-ripgrep/bin/*', '**/node-pty/build/Release/*', '**/*.wasm'], 'app/node_modules.asar'));
 
 		let all = es.merge(
 			packageJsonStream,
diff --git a/src/vs/workbench/services/textMate/electron-browser/textMateService.ts b/src/vs/workbench/services/textMate/electron-browser/textMateService.ts
index 3d0e53bf45e..22ecdbdcc5f 100644
--- a/src/vs/workbench/services/textMate/electron-browser/textMateService.ts
+++ b/src/vs/workbench/services/textMate/electron-browser/textMateService.ts
@@ -24,6 +24,7 @@ import { TMGrammarFactory } from 'vs/workbench/services/textMate/common/TMGramma
 import { IModelContentChangedEvent } from 'vs/editor/common/model/textModelEvents';
 import { IStorageService } from 'vs/platform/storage/common/storage';
 import { IExtensionResourceLoaderService } from 'vs/workbench/services/extensionResourceLoader/common/extensionResourceLoader';
+import { IWorkbenchEnvironmentService } from 'vs/workbench/services/environment/common/environmentService';
 
 const RUN_TEXTMATE_IN_WORKER = false;
 
@@ -117,7 +118,7 @@ export class TextMateWorkerHost {
 
 	constructor(
 		private readonly textMateService: TextMateService,
-		@IExtensionResourceLoaderService private readonly _extensionResourceLoaderService: IExtensionResourceLoaderService,
+		@IExtensionResourceLoaderService private readonly _extensionResourceLoaderService: IExtensionResourceLoaderService
 	) {
 	}
 
@@ -147,6 +148,7 @@ export class TextMateService extends AbstractTextMateService {
 		@IConfigurationService configurationService: IConfigurationService,
 		@IStorageService storageService: IStorageService,
 		@IModelService private readonly _modelService: IModelService,
+		@IWorkbenchEnvironmentService private readonly _environmentService: IWorkbenchEnvironmentService
 	) {
 		super(modeService, themeService, extensionResourceLoaderService, notificationService, logService, configurationService, storageService);
 		this._worker = null;
@@ -178,7 +180,11 @@ export class TextMateService extends AbstractTextMateService {
 	}
 
 	protected async _loadVSCodeOnigurumWASM(): Promise<Response | ArrayBuffer> {
-		const wasmPath = require.toUrl('../../../../../../node_modules/vscode-oniguruma-wasm/release/onig.wasm');
+		const wasmPath = (
+			this._environmentService.isBuilt
+				? require.toUrl('../../../../../../node_modules.asar.unpacked/vscode-oniguruma-wasm/release/onig.wasm')
+				: require.toUrl('../../../../../../node_modules/vscode-oniguruma-wasm/release/onig.wasm')
+		);
 		const response = await fetch(wasmPath);
 		return response;
 	}