diff --git a/.gitignore b/.gitignore
index 22d0d82..ecdf2d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 vendor
+.idea
diff --git a/src/Mutex.php b/src/Mutex.php
index 4203d1b..12ab753 100644
--- a/src/Mutex.php
+++ b/src/Mutex.php
@@ -26,6 +26,9 @@ public function __construct(Command $command)
         $this->ninja = new Ninja($command->getMutexName(), $this->strategy);
     }
 
+    /**
+     * @return FlockLock|MemcachedLock|MySqlLock|PhpRedisLock|PredisRedisLock
+     */
     public function getStrategy()
     {
         if (!empty($this->strategy)) {