diff --git a/src/WoolTrait.php b/src/WoolTrait.php
index e80d1654..497a7e38 100644
--- a/src/WoolTrait.php
+++ b/src/WoolTrait.php
@@ -98,7 +98,7 @@ public function stat(array $payload)
     {
         if (!file_exists($payload['path'])) {
             return \React\Promise\reject([
-                'error' => 'Path doesn\'t exist',
+                'error' => ['message' => 'Path doesn\'t exist'],
             ]);
         }
 
diff --git a/tests/Adapters/FileTest.php b/tests/Adapters/FileTest.php
index 55cf9bce..863677c7 100644
--- a/tests/Adapters/FileTest.php
+++ b/tests/Adapters/FileTest.php
@@ -79,16 +79,18 @@ public function testExists(LoopInterface $loop, FilesystemInterface $filesystem)
     /**
      * @dataProvider filesystemProvider
      */
-    public function testDoesntExists(LoopInterface $loop, FilesystemInterface $filesystem)
+    public function testDoesntExist(LoopInterface $loop, FilesystemInterface $filesystem)
     {
         $this->setLoopTimeout($loop);
-        $result = false;
+        $rejectionReason = null;
+
         try {
-            $this->await($filesystem->file(__FILE__ . '.' . time())->exists(), $loop);
+            $this->await($filesystem->file(__FILE__ . '.' . time())->stat(), $loop);
         } catch (\Exception $e) {
-            $result = true;
+            $rejectionReason = $e->getMessage();
         }
-        $this->assertTrue($result);
+
+        $this->assertEquals("Path doesn't exist", $rejectionReason);
     }
 
     /**