diff --git a/packages/component-meta/lib/base.ts b/packages/component-meta/lib/base.ts
index 4f13a1977d..8cda1c706e 100644
--- a/packages/component-meta/lib/base.ts
+++ b/packages/component-meta/lib/base.ts
@@ -71,6 +71,7 @@ function createCheckerWorker(
 	let projectVersion = 0;
 
 	const scriptSnapshots = new Map<string, ts.IScriptSnapshot>();
+	const resolvedVueOptions = vue.resolveVueCompilerOptions(parsedCommandLine.vueOptions);
 	const _host: vue.TypeScriptProjectHost = {
 		getCurrentDirectory: () => rootPath,
 		getProjectVersion: () => projectVersion.toString(),
@@ -86,11 +87,16 @@ function createCheckerWorker(
 			}
 			return scriptSnapshots.get(fileName);
 		},
-		getLanguageId: vue.resolveCommonLanguageId,
+		getLanguageId: fileName => {
+			if (resolvedVueOptions.extensions.some(ext => fileName.endsWith(ext))) {
+				return 'vue';
+			}
+			return vue.resolveCommonLanguageId(fileName);
+		},
 	};
 
 	return {
-		...baseCreate(ts, configFileName, _host, vue.resolveVueCompilerOptions(parsedCommandLine.vueOptions), checkerOptions, globalComponentName),
+		...baseCreate(ts, configFileName, _host, resolvedVueOptions, checkerOptions, globalComponentName),
 		updateFile(fileName: string, text: string) {
 			fileName = fileName.replace(windowsPathReg, '/');
 			scriptSnapshots.set(fileName, ts.ScriptSnapshot.fromString(text));
diff --git a/packages/typescript-plugin/index.ts b/packages/typescript-plugin/index.ts
index 702b2839e8..e6f2d39516 100644
--- a/packages/typescript-plugin/index.ts
+++ b/packages/typescript-plugin/index.ts
@@ -57,7 +57,11 @@ function createLanguageServicePlugin(): ts.server.PluginModuleFactory {
 						fileName => {
 							const snapshot = getScriptSnapshot(fileName);
 							if (snapshot) {
-								files.set(fileName, resolveCommonLanguageId(fileName), snapshot);
+								let languageId = resolveCommonLanguageId(fileName);
+								if (extensions.some(ext => fileName.endsWith(ext))) {
+									languageId = 'vue';
+								}
+								files.set(fileName, languageId, snapshot);
 							}
 							else {
 								files.delete(fileName);
@@ -219,6 +223,10 @@ function createLanguageServicePlugin(): ts.server.PluginModuleFactory {
 				) {
 					const oldFiles = externalFiles.get(project);
 					const newFiles = new Set(searchExternalFiles(ts, project, projectExternalFileExtensions.get(project)!));
+					console.log('volar-search vue files');
+					for (const file of newFiles) {
+						console.log(file);
+					}
 					externalFiles.set(project, newFiles);
 					if (oldFiles && !twoSetsEqual(oldFiles, newFiles)) {
 						for (const oldFile of oldFiles) {