diff --git a/htdocs/langs/en_US/productbatch.lang b/htdocs/langs/en_US/productbatch.lang
index a05a6190fc4..aa13c745c96 100644
--- a/htdocs/langs/en_US/productbatch.lang
+++ b/htdocs/langs/en_US/productbatch.lang
@@ -1,7 +1,7 @@
 # ProductBATCH language file - en_US - ProductBATCH
 ManageLotSerial=Use lot/serial number
 ProductStatusOnBatch=Lot (required)
-ProductStatusOnSerial=Serial number (must be unique for each equipment)
+ProductStatusOnSerial=Unique Serial Number (required)
 ProductStatusNotOnBatch=No (lot/serial not used)
 ProductStatusOnBatchShort=Lot
 ProductStatusOnSerialShort=Serial