diff --git a/build/gulpfile.ci.js b/build/gulpfile.ci.js
index ca781a913785bb47a1d91f9e778fa19b355536e7..ab3746af2a69bc136f9ae8a889783b003de5b356 100644
--- a/build/gulpfile.ci.js
+++ b/build/gulpfile.ci.js
@@ -9,51 +9,61 @@ const gulp = require('gulp');
 const task = require('./lib/task');
 
 gulp.task(task.define('win32-ia32', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-win32-ia32-ci')
 )));
 
 gulp.task(task.define('win32-ia32-min', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-win32-ia32-min-ci')
 )));
 
 gulp.task(task.define('win32-x64', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-win32-x64-ci')
 )));
 
 gulp.task(task.define('win32-x64-min', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-win32-x64-min-ci')
 )));
 
 gulp.task(task.define('linux-ia32', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-linux-ia32-ci')
 )));
 
 gulp.task(task.define('linux-ia32-min', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-linux-ia32-min-ci')
 )));
 
 gulp.task(task.define('linux-x64', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-linux-x64-ci')
 )));
 
 gulp.task(task.define('linux-x64-min', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-linux-x64-min-ci')
 )));
 
 gulp.task(task.define('darwin', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-darwin-ci')
 )));
 
 gulp.task(task.define('darwin-min', task.series(
+	gulp.task('compile-build'),
 	gulp.task('compile-extensions-build'),
 	gulp.task('vscode-darwin-min-ci')
 )));
diff --git a/build/gulpfile.vscode.js b/build/gulpfile.vscode.js
index 7f0384d69cf5d3032910fff31624e070375967fb..90082925121e5f9bf30c65568dc70a0d3957d262 100644
--- a/build/gulpfile.vscode.js
+++ b/build/gulpfile.vscode.js
@@ -92,10 +92,7 @@ const BUNDLED_FILE_HEADER = [
 ].join('\n');
 
 const optimizeVSCodeTask = task.define('optimize-vscode', task.series(
-	task.parallel(
-		util.rimraf('out-vscode'),
-		compileBuildTask
-	),
+	util.rimraf('out-vscode'),
 	common.optimizeTask({
 		src: 'out-build',
 		entryPoints: vscodeEntryPoints,
@@ -107,23 +104,16 @@ const optimizeVSCodeTask = task.define('optimize-vscode', task.series(
 	})
 ));
 
-
-const optimizeIndexJSTask = task.define('optimize-index-js', task.series(
+const sourceMappingURLBase = `https://ticino.blob.core.windows.net/sourcemaps/${commit}`;
+const minifyVSCodeTask = task.define('minify-vscode', task.series(
 	optimizeVSCodeTask,
+	util.rimraf('out-vscode-min'),
 	() => {
 		const fullpath = path.join(process.cwd(), 'out-vscode/bootstrap-window.js');
 		const contents = fs.readFileSync(fullpath).toString();
 		const newContents = contents.replace('[/*BUILD->INSERT_NODE_MODULES*/]', JSON.stringify(nodeModules));
 		fs.writeFileSync(fullpath, newContents);
-	}
-));
-
-const sourceMappingURLBase = `https://ticino.blob.core.windows.net/sourcemaps/${commit}`;
-const minifyVSCodeTask = task.define('minify-vscode', task.series(
-	task.parallel(
-		util.rimraf('out-vscode-min'),
-		optimizeIndexJSTask
-	),
+	},
 	common.minifyTask('out-vscode', `${sourceMappingURLBase}/core`)
 ));
 
@@ -446,16 +436,17 @@ BUILD_TARGETS.forEach(buildTarget => {
 		const sourceFolderName = `out-vscode${dashed(minified)}`;
 		const destinationFolderName = `VSCode${dashed(platform)}${dashed(arch)}`;
 
-		const vscodeCITaskWhat = task.define(`vscode${dashed(platform)}${dashed(arch)}${dashed(minified)}-ci`, task.series(
-			util.rimraf(path.join(buildRoot, destinationFolderName)),
+		const vscodeTaskCI = task.define(`vscode${dashed(platform)}${dashed(arch)}${dashed(minified)}-ci`, task.series(
 			minified ? minifyVSCodeTask : optimizeVSCodeTask,
+			util.rimraf(path.join(buildRoot, destinationFolderName)),
 			packageTask(platform, arch, sourceFolderName, destinationFolderName, opts)
 		));
-		gulp.task(vscodeCITaskWhat);
+		gulp.task(vscodeTaskCI);
 
 		const vscodeTask = task.define(`vscode${dashed(platform)}${dashed(arch)}${dashed(minified)}`, task.series(
+			compileBuildTask,
 			compileExtensionsBuildTask,
-			vscodeCITaskWhat
+			vscodeTaskCI
 		));
 		gulp.task(vscodeTask);
 	});