diff --git a/htdocs/langs/en_US/products.lang b/htdocs/langs/en_US/products.lang
index ddda0152245..54d809dadda 100644
--- a/htdocs/langs/en_US/products.lang
+++ b/htdocs/langs/en_US/products.lang
@@ -309,3 +309,4 @@ PropalMergePdfProductChooseFile=Select PDF files
 IncludingProductWithTag=Including product/service with tag
 DefaultPriceRealPriceMayDependOnCustomer=Default price, real price may depend on customer
 WarningSelectOneDocument=Please select at least one document
+DefaultUnitToShow=Units