diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 5f71e77eb71..58b21ca3554 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -131,7 +131,6 @@ IdModule=Module ID
 IdPermissions=Permissions ID
 LanguageBrowserParameter=Parameter %s
 LocalisationDolibarrParameters=Localization parameters
-ClientTZ=Client Time Zone (user)
 ClientHour=Client time (user)
 OSTZ=Server OS Time Zone
 PHPTZ=PHP server Time Zone
diff --git a/htdocs/langs/en_US/main.lang b/htdocs/langs/en_US/main.lang
index ddd60a9b68e..9fba774e7a5 100644
--- a/htdocs/langs/en_US/main.lang
+++ b/htdocs/langs/en_US/main.lang
@@ -1138,4 +1138,5 @@ InformationOnLinkToContract=This amount is only the total of all the lines of th
 ConfirmCancel=Are you sure you want to cancel
 EmailMsgID=Email MsgID
 Forthcoming=Forthcoming
-Currently=Currently
\ No newline at end of file
+Currently=Currently
+ClientTZ=Client Time Zone (user)