La. Civ. Code art. 2907
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 1-3, 6-671
When the loan is of money, the borrower is bound to repay the same numerical amount in legal tender of the country whose money was lent regardless of fluctuation in the value of the currency.
When commodities are lent, the borrower is bound to return the same quantity and quality regardless of any increase or diminution of value.
La. C.C. § 2907