diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 24922a912dc..15374722716 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -374,7 +374,7 @@ DoTestSendHTML=Test sending HTML
 ErrorCantUseRazIfNoYearInMask=Error, can't use option @ to reset counter each year if sequence {yy} or {yyyy} is not in mask.
 ErrorCantUseRazInStartedYearIfNoYearMonthInMask=Error, can't use option @ if sequence {yy}{mm} or {yyyy}{mm} is not in mask.
 UMask=UMask parameter for new files on Unix/Linux/BSD/Mac file system.
-UMaskExplanation=This parameter allow you to define permissions set by default on files created by Dolibarr on server (during upload for example).<br>It must be the octal value (for example, 0666 means read and write for everyone.). Recommended value is 0660<br>This parameter is useless on a Windows server.
+UMaskExplanation=This parameter allow you to define permissions set by default on files created by Dolibarr on server (during upload for example).<br>It must be the octal value (for example, 0666 means read and write for everyone.). Recommended value is 0600 or 0660<br>This parameter is useless on a Windows server.
 SeeWikiForAllTeam=Take a look at the Wiki page for a list of contributors and their organization
 UseACacheDelay= Delay for caching export response in seconds (0 or empty for no cache)
 DisableLinkToHelpCenter=Hide the link "<b>Need help or support</b>" on the login page