How to use workday intl in calc? Version: 4.4.5.2, English, Calc, Windows 7

Version: 4.4.5.2, English, Calc, Windows 7
I have tried using various formats of =workday.intl(b2,3,1000000,L1:L45) and do not get the correct answer. In this example, B2 is the starting date and L1:L45 are my assigned holidays. The date I am testing is December 22, 2015 where December 25, 2015 is in the defined holiday list. The correct answer should be December 26, 2015; however, I keep getting December 25, 2016 as the output from the spreadsheet.