diff --git a/packages/obsidian-testing-framework/src/index.ts b/packages/obsidian-testing-framework/src/index.ts
index 4fef385..21898a7 100644
--- a/packages/obsidian-testing-framework/src/index.ts
+++ b/packages/obsidian-testing-framework/src/index.ts
@@ -42,7 +42,7 @@ const obsidianTestFixtures: Fixtures<ObsidianTestFixtures> = {
 				timeout: 60000,
 				args: [
 					getExe(),
-					!!vault && `obsidian://open?vault=${encodeURI(vault)}`,
+					!!vault && `obsidian://open?path=${encodeURIComponent(vault)}`,
 				].filter((a) => !!a) as string[],
 			});
 			electronApp.on("console", async (msg) => {
diff --git a/packages/test-project/playwright.config.ts b/packages/test-project/playwright.config.ts
index 64f2411..449eefa 100644
--- a/packages/test-project/playwright.config.ts
+++ b/packages/test-project/playwright.config.ts
@@ -1,5 +1,7 @@
 import { defineConfig, devices } from '@playwright/test';
 import {ObsidianTestFixtures} from "obsidian-testing-framework/fixture";
+import os from "os"
+import path from 'path';
 
 /**
  * Read environment variables from file.
@@ -33,7 +35,7 @@ export default defineConfig<ObsidianTestFixtures>({
     /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
     trace: 'on-first-retry',
 	obsidian: {
-		vault: "test-framework-tester"
+		vault: path.join(__dirname, "vault", "test-framework-tester")
 	}
 	
   },