diff --git a/htdocs/projet/admin/project.php b/htdocs/projet/admin/project.php
index 37a2bb246ce..4bfb899cffe 100644
--- a/htdocs/projet/admin/project.php
+++ b/htdocs/projet/admin/project.php
@@ -818,7 +818,7 @@ print '<tr class="oddeven">';
 print '<td>'.$langs->trans("TimesheetPreventAfterFollowingMonths").'</td>';
 
 print '<td class="right" width="60" colspan="2">';
-print '<input type="number" id="timesheetFreezeDuration" name="timesheetFreezeDuration" min="0" step="1" value="'.$conf->global->PROJECT_TIMESHEET_PREVENT_AFTER_MONTHS.'"/>&nbsp;';
+print '<input type="number" class="width50" id="timesheetFreezeDuration" name="timesheetFreezeDuration" min="0" step="1" value="'.$conf->global->PROJECT_TIMESHEET_PREVENT_AFTER_MONTHS.'"/>&nbsp;';
 print '<input type="submit" class="button small reposition" name="PROJECT_TIMESHEET_PREVENT_AFTER_MONTHS" value="'.$langs->trans("Modify").'">';
 print '</td>';
 print '</tr>';