diff --git a/htdocs/langs/en_US/mrp.lang b/htdocs/langs/en_US/mrp.lang
index 8bb55dac36d..29bb88a80a4 100644
--- a/htdocs/langs/en_US/mrp.lang
+++ b/htdocs/langs/en_US/mrp.lang
@@ -4,6 +4,7 @@ LatestBOMModified=Latest %s Bills of materials modified
 BillOfMaterials=Bill of Material
 BOMsSetup=Setup of module BOM
 ListOfBOMs=List of bills of material - BOM
+ListOfManufacturingOrders=List of Manufacturing Orders
 NewBOM=New bill of material
 ProductBOMHelp=Product to create with this BOM
 BOMsNumberingModules=BOM numbering templates
@@ -19,4 +20,5 @@ MenuMRP=Manufacturing Orders
 NewMO=New Manufacturing Order
 QtyToProduce=Qty to produce
 DateStartPlannedMo=Date start planned
-DateEndPlannedMo=Date end planned
\ No newline at end of file
+DateEndPlannedMo=Date end planned
+KeepEmptyForAsap=Empty means 'As Soon As Possible'
\ No newline at end of file