diff --git a/htdocs/langs/en_US/productbatch.lang b/htdocs/langs/en_US/productbatch.lang
index 9e299baf8f3..a63442d4b74 100644
--- a/htdocs/langs/en_US/productbatch.lang
+++ b/htdocs/langs/en_US/productbatch.lang
@@ -25,6 +25,6 @@ ShowCurrentStockOfLot=Show current stock for couple product/lot
 ShowLogOfMovementIfLot=Show log of movements for couple product/lot
 StockDetailPerBatch=Stock detail per lot
 SerialNumberAlreadyInUse=Serial number %s is already used for product %s
-TooManyQtyForSerialNumber=You can only have one product %s for serial number %S
+TooManyQtyForSerialNumber=You can only have one product %s for serial number %s
 BatchLotNumberingModules=Options for automatic generation of batch products managed by lots
 BatchSerialNumberingModules=Options for automatic generation of batch products managed by serial numbers
\ No newline at end of file