diff --git a/htdocs/langs/en_US/mrp.lang b/htdocs/langs/en_US/mrp.lang
index dfc8437d08a..fcfcaba700a 100644
--- a/htdocs/langs/en_US/mrp.lang
+++ b/htdocs/langs/en_US/mrp.lang
@@ -1,11 +1,11 @@
-MenuBOM=Bills Of Materials
-BillOfMaterials=Bill of Materials
+MenuBOM=Bills of material
+BillOfMaterials=Bill of Material
 BOMsSetup=Setup of module BOM
-ListOfBOMs=List of Bills Of Materials
+ListOfBOMs=List of bills of material (BOM)
 NewBOM=New bill of material
 ProductBOMHelp=Product to create with this BOM
-BOMsNumberingModules=BOMs numbering templates
+BOMsNumberingModules=BOM numbering templates
 BOMsModelModule=BOMS document templates
-FreeLegalTextOnBOMs=Free text on document of BOMs
-WatermarkOnDraftBOMs=Watermark on draft BOMs
-ConfirmCloneBillOfMaterials
+FreeLegalTextOnBOMs=Free text on document of BOM
+WatermarkOnDraftBOMs=Watermark on draft BOM
+ConfirmCloneBillOfMaterials=Are you sure you want to clone this bill of material ?