diff --git a/plogical/upgrade.py b/plogical/upgrade.py
index 130f47a71..caa04819e 100755
--- a/plogical/upgrade.py
+++ b/plogical/upgrade.py
@@ -534,13 +534,14 @@ $cfg['Servers'][$i]['LogoutURL'] = 'phpmyadminsignin.php?logout';
             ## take care of auto create folders
 
             labsData = open(labsPath, 'r').read()
+            labsDataLines = open(labsPath, 'r').readlines()
 
             if labsData.find('autocreate_system_folders') > -1:
                 command = "sed -i 's|autocreate_system_folders = Off|autocreate_system_folders = On|g' %s" % (labsPath)
                 Upgrade.executioner(command, 'mkdir snappymail configs', 0)
             else:
                 WriteToFile = open(labsPath, 'w')
-                for lines in open(labsPath, 'r').readlines():
+                for lines in labsDataLines:
                     if lines.find('[labs]') > -1:
                         WriteToFile.write(lines)
                         WriteToFile.write(f'autocreate_system_folders = On\n')
@@ -550,9 +551,11 @@ $cfg['Servers'][$i]['LogoutURL'] = 'phpmyadminsignin.php?logout';
 
             ##take care of imap_folder_list_limit
 
+            labsDataLines = open(labsPath, 'r').readlines()
+
             if labsData.find('imap_folder_list_limit') == -1:
                 WriteToFile = open(labsPath, 'w')
-                for lines in open(labsPath, 'r').readlines():
+                for lines in labsDataLines:
                     if lines.find('[labs]') > -1:
                         WriteToFile.write(lines)
                         WriteToFile.write(f'imap_folder_list_limit = 0\n')