diff --git a/src/Spiechu/JSONDiskCache/SetupFiles.php b/src/Spiechu/JSONDiskCache/SetupFiles.php
index 86df56e..ccaebb5 100644
--- a/src/Spiechu/JSONDiskCache/SetupFiles.php
+++ b/src/Spiechu/JSONDiskCache/SetupFiles.php
@@ -13,6 +13,12 @@
 
 class SetupFiles
 {
+    /**
+     * @param string $dirToCreate path to dir
+     * @param int $perms dir perms
+     * @return \SplFileInfo created/checked dir
+     * @throws JSONDiskCacheException
+     */
     public function setupCacheDir($dirToCreate, $perms)
     {
         $dir = new \SplFileInfo($dirToCreate);
@@ -32,6 +38,13 @@ public function setupCacheDir($dirToCreate, $perms)
         return $dir;
     }
 
+    /**
+     * @param \SplFileInfo $dir
+     * @param string $filename
+     * @param int $perms file perms
+     * @return \SplFileInfo
+     * @throws JSONDiskCacheException
+     */
     public function setupFile(\SplFileInfo $dir, $filename, $perms)
     {
         if (!$dir->isDir()) {