diff --git a/src/Illuminate/Database/Concerns/BuildsQueries.php b/src/Illuminate/Database/Concerns/BuildsQueries.php
index a446adb7a9d3..e79d9f8f7338 100644
--- a/src/Illuminate/Database/Concerns/BuildsQueries.php
+++ b/src/Illuminate/Database/Concerns/BuildsQueries.php
@@ -36,6 +36,8 @@ public function chunk($count, callable $callback)
                 return false;
             }
 
+            unset($results);
+
             $page++;
         } while ($countResults == $count);