diff --git a/app/courses/proxy.php b/app/courses/proxy.php
index 4f46b43b15..25dffcba5a 100644
--- a/app/courses/proxy.php
+++ b/app/courses/proxy.php
@@ -1,4 +1,5 @@
 <?php
+
 /* For licensing terms, see /license.txt */
 
 /**
diff --git a/main/inc/lib/display.lib.php b/main/inc/lib/display.lib.php
index 381372f523..339995f64b 100755
--- a/main/inc/lib/display.lib.php
+++ b/main/inc/lib/display.lib.php
@@ -1,4 +1,5 @@
 <?php
+
 /* For licensing terms, see /license.txt */
 
 use Chamilo\CoreBundle\Component\Utils\ChamiloApi;
diff --git a/main/inc/lib/fileUpload.lib.php b/main/inc/lib/fileUpload.lib.php
index 2ede490c1f..ad0080ca65 100755
--- a/main/inc/lib/fileUpload.lib.php
+++ b/main/inc/lib/fileUpload.lib.php
@@ -1095,7 +1095,6 @@ function unzip_uploaded_file($uploaded_file, $upload_path, $base_work_dir, $max_
             error_log('Could not create directory '.$base_work_dir.$upload_path.' to unzip files');
         }
         chdir($save_dir); // Back to previous dir position
-
     }
 
     return true;