diff --git a/spec/Gaufrette/Adapter/FlysystemSpec.php b/spec/Gaufrette/Adapter/FlysystemSpec.php
index cefc46ef4..2fbfbba43 100644
--- a/spec/Gaufrette/Adapter/FlysystemSpec.php
+++ b/spec/Gaufrette/Adapter/FlysystemSpec.php
@@ -45,6 +45,13 @@ function it_checks_if_file_exists(AdapterInterface $adapter)
         $this->exists('filename')->shouldReturn(true);
     }
 
+    function it_checks_if_file_exists_when_flysystem_returns_array(AdapterInterface $adapter)
+    {
+        $adapter->has('filename')->willReturn(['type' => 'file']);
+
+        $this->exists('filename')->shouldReturn(true);
+    }
+
     function it_fetches_keys(AdapterInterface $adapter)
     {
         $adapter->listContents()->willReturn([[
diff --git a/src/Gaufrette/Adapter/Flysystem.php b/src/Gaufrette/Adapter/Flysystem.php
index 0e1c6dead..9e1842e7f 100644
--- a/src/Gaufrette/Adapter/Flysystem.php
+++ b/src/Gaufrette/Adapter/Flysystem.php
@@ -50,7 +50,7 @@ public function write($key, $content)
      */
     public function exists($key)
     {
-        return $this->adapter->has($key);
+        return (bool) $this->adapter->has($key);
     }
 
     /**