diff --git a/htdocs/langs/en_US/receiptprinter.lang b/htdocs/langs/en_US/receiptprinter.lang
index 9a3b28fa399..3df49b9fe67 100644
--- a/htdocs/langs/en_US/receiptprinter.lang
+++ b/htdocs/langs/en_US/receiptprinter.lang
@@ -54,3 +54,10 @@ DOL_UNDERLINE=Enable underline
 DOL_UNDERLINE_DISABLED=Disable underline
 DOL_BEEP=Beed sound
 DOL_PRINT_TEXT=Print text
+DOL_VALUE_DATE=Invoice date
+DOL_VALUE_DATE_TIME=Invoice date and time
+DOL_VALUE_YEAR=Invoice year
+DOL_VALUE_MONTH_LETTERS=Invoice month in letters
+DOL_VALUE_MONTH=Invoice month
+DOL_VALUE_DAY=Invoice day
+DOL_VALUE_DAY_LETTERS=Inovice day in letters