diff --git a/packages/language-server/src/common/project.ts b/packages/language-server/src/common/project.ts
index 4cbdd7def..7c5ad1622 100644
--- a/packages/language-server/src/common/project.ts
+++ b/packages/language-server/src/common/project.ts
@@ -62,6 +62,7 @@ export async function createProject(params: ProjectParams) {
 			if (!parsedCommandLine.fileNames.includes(fileName)) {
 				parsedCommandLine.fileNames.push(fileName);
 				projectVersion++;
+				projectVersionUpdateTime = cancelTokenHost.getMtime();
 			}
 		},
 		dispose,
@@ -103,6 +104,8 @@ export async function createProject(params: ProjectParams) {
 	}
 	async function onWorkspaceFilesChanged(changes: vscode.FileEvent[]) {
 
+		const _projectVersion = projectVersion;
+
 		for (const change of changes) {
 
 			const script = scripts.uriGet(change.uri);
@@ -132,6 +135,10 @@ export async function createProject(params: ProjectParams) {
 			projectVersion++;
 			typeRootVersion++;
 		}
+
+		if (_projectVersion !== projectVersion) {
+			projectVersionUpdateTime = cancelTokenHost.getMtime();
+		}
 	}
 	function createLanguageServiceHost() {