diff --git a/system/src/Grav/Common/Filesystem/Folder.php b/system/src/Grav/Common/Filesystem/Folder.php
index 3e04117ce..79eb5ada8 100644
--- a/system/src/Grav/Common/Filesystem/Folder.php
+++ b/system/src/Grav/Common/Filesystem/Folder.php
@@ -232,8 +232,9 @@ abstract class Folder
     /**
      * Recursively delete directory from filesystem.
      *
-     * @param  string            $target
+     * @param  string $target
      * @throws \RuntimeException
+     * @return bool
      */
     public static function delete($target)
     {
diff --git a/system/src/Grav/Common/Page/Collection.php b/system/src/Grav/Common/Page/Collection.php
index 5dd03ceb0..59302b781 100644
--- a/system/src/Grav/Common/Page/Collection.php
+++ b/system/src/Grav/Common/Page/Collection.php
@@ -226,15 +226,15 @@ class Collection extends Iterator
         $start = strtotime($startDate);
         $end = $endDate ? strtotime($endDate) : strtotime("now +1000 years");
 
-        $daterange = [];
+        $date_range = [];
 
         foreach ($this->items as $path => $slug) {
             $page = $this->pages->get($path);
             if ($page->date() > $start && $page->date() < $end) {
-                $daterange[$path] = $slug;
+                $date_range[$path] = $slug;
             }
         }
-        $this->items = $daterange;
+        $this->items = $date_range;
         return $this;
     }