diff --git a/patches/014-add-mail-usage.patch b/patches/014-add-mail-usage.patch
index d9cf77aa9731d2dac1659ab181969da7e090d7f6..02836ee9aa0e879a225b3e26ce3048717d8a104f 100644
--- a/patches/014-add-mail-usage.patch
+++ b/patches/014-add-mail-usage.patch
@@ -1,22 +1,22 @@
---- ./lib/private/legacy/OC_Helper.php	2022-03-28 17:42:25.107644314 +0530
-+++ ./lib/private/legacy/OC_Helper-new.php	2022-03-28 17:44:07.349596051 +0530
+--- lib/private/legacy/OC_Helper.php	2022-05-17 19:34:56.340385500 +0530
++++ lib/private/legacy/OC_Helper_new.php	2022-05-17 21:19:30.060385500 +0530
 @@ -532,6 +532,12 @@
  			$quota = $sourceStorage->getQuota();
  		}
  		$free = $sourceStorage->free_space($internalPath);
-+                $ownerId = $storage->getOwner($path);
-+                $mailQuotaUsage = (int) \OC::$server->getConfig()->getUserValue($ownerId, 'ecloud-accounts', 'mailQuotaUsage', 0);
-+                $free = $free - $mailQuotaUsage;
-+                if($path === '/') {
-+                        $used = $used + $mailQuotaUsage;
-+                }
++		$ownerId = $storage->getOwner($path);
++		$mailQuotaUsage = (int) \OC::$server->getConfig()->getUserValue($ownerId, 'ecloud-accounts', 'mailQuotaUsage', 0);
++		$free = max(0,$free - $mailQuotaUsage);
++		if($path === '/') {
++				$used = $used + $mailQuotaUsage;
++		}
  		if ($free >= 0) {
  			$total = $free + $used;
  		} else {
 @@ -547,7 +553,6 @@
  			$relative = 0;
  		}
- 
+
 -		$ownerId = $storage->getOwner($path);
  		$ownerDisplayName = '';
  		$owner = \OC::$server->getUserManager()->get($ownerId);