diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 59b31693b2b..82a80881fd0 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -514,8 +514,8 @@ Module5000Name=Multi-company
 Module5000Desc=Allows you to manage multiple companies
 Module6000Name=Workflow
 Module6000Desc=Workflow management
-Module20000Name=Holidays
-Module20000Desc=Declare and follow employees holidays
+Module20000Name=Leave Requests management
+Module20000Desc=Declare and follow employees leaves requests
 Module39000Name=Product batch
 Module39000Desc=Batch number, eat-by and sell-by date management on products
 Module50000Name=PayBox
diff --git a/htdocs/langs/en_US/holiday.lang b/htdocs/langs/en_US/holiday.lang
index c25abf6449c..698d34eb539 100644
--- a/htdocs/langs/en_US/holiday.lang
+++ b/htdocs/langs/en_US/holiday.lang
@@ -52,16 +52,16 @@ UpdateButtonCP=Update
 CantUpdate=You cannot update this leave request.
 NoDateDebut=You must select a start date.
 NoDateFin=You must select an end date.
-ErrorDureeCP=Your request for holidays does not contain working day.
-TitleValidCP=Approve the request holidays
+ErrorDureeCP=Your leave request does not contain working day.
+TitleValidCP=Approve the leave request
 ConfirmValidCP=Are you sure you want to approve the leave request?
 DateValidCP=Date approved
 TitleToValidCP=Send leave request
 ConfirmToValidCP=Are you sure you want to send the leave request?
-TitleRefuseCP=Refuse the request holidays
+TitleRefuseCP=Refuse the leave request
 ConfirmRefuseCP=Are you sure you want to refuse the leave request?
 NoMotifRefuseCP=You must choose a reason for refusing the request.
-TitleCancelCP=Cancel the request holidays
+TitleCancelCP=Cancel the leave request
 ConfirmCancelCP=Are you sure you want to cancel the leave request?
 DetailRefusCP=Reason for refusal
 DateRefusCP=Date of refusal
@@ -78,7 +78,7 @@ ActionByCP=Performed by
 UserUpdateCP=For the user
 PrevSoldeCP=Previous Balance
 NewSoldeCP=New Balance
-alreadyCPexist=A request for holidays has already been done on this period.
+alreadyCPexist=A leave request has already been done on this period.
 UserName=Name
 Employee=Employee
 FirstDayOfHoliday=First day of vacation
@@ -88,25 +88,25 @@ ManualUpdate=Manual update
 HolidaysCancelation=Leave request cancelation
 
 ## Configuration du Module ##
-ConfCP=Configuration of holidays module
+ConfCP=Configuration of leave request module
 DescOptionCP=Description of the option
 ValueOptionCP=Value
-GroupToValidateCP=Group with the ability to approve vacation
+GroupToValidateCP=Group with the ability to approve leave requests
 ConfirmConfigCP=Validate the configuration
-LastUpdateCP=Last automatic update of vacation
+LastUpdateCP=Last automatic update of leaves allocation
 UpdateConfCPOK=Updated successfully.
 ErrorUpdateConfCP=An error occurred during the update, please try again.
-AddCPforUsers=Please add the balance of holidays of users by <a href="../define_holiday.php" style="font-weight: normal; color: red; text-decoration: underline;">clicking here</a>.
-DelayForSubmitCP=Deadline to apply for holidays
-AlertapprobatortorDelayCP=Prevent the approbator if the holiday request does not match the deadline
+AddCPforUsers=Please add the balance of leaves allocation of users by <a href="../define_holiday.php" style="font-weight: normal; color: red; text-decoration: underline;">clicking here</a>.
+DelayForSubmitCP=Deadline to make a leave requests
+AlertapprobatortorDelayCP=Prevent the approbator if the leave request does not match the deadline
 AlertValidatorDelayCP=Préevent the approbator if the leave request exceed delay
 AlertValidorSoldeCP=Prevent the approbator if the leave request exceed the balance
 nbUserCP=Number of users supported in the module Leaves
-nbHolidayDeductedCP=Number of holidays to be deducted per day of vacation taken
-nbHolidayEveryMonthCP=Number of vacation days added every month
+nbHolidayDeductedCP=Number of leave days to be deducted per day of vacation taken
+nbHolidayEveryMonthCP=Number of leave days added every month
 Module27130Name= Management of leave requests
 Module27130Desc= Management of leave requests
-TitleOptionMainCP=Main settings of Leave request
+TitleOptionMainCP=Main settings of leave request
 TitleOptionEventCP=Settings of leave requets for events
 ValidEventCP=Validate
 UpdateEventCP=Update events