diff --git a/lsp-sample/.vscode/launch.json b/lsp-sample/.vscode/launch.json
index 4ba5612248..5d59050f0f 100644
--- a/lsp-sample/.vscode/launch.json
+++ b/lsp-sample/.vscode/launch.json
@@ -7,7 +7,10 @@
 			"request": "launch",
 			"name": "Launch Client",
 			"runtimeExecutable": "${execPath}",
-			"args": ["--extensionDevelopmentPath=${workspaceRoot}"],
+			"args": [
+				"--extensionDevelopmentPath=${workspaceRoot}",
+				"${workspaceRoot}/client/testFixture"
+			],
 			"outFiles": [
 				"${workspaceRoot}/client/out/**/*.js",
 				"${workspaceRoot}/server/out/**/*.js"