Is there a form I need to file to explain why I received both a 1099MISC and W2 from the same company in the same tax year? was contractor first, then hired as employee

I worked as independent contractor first for 6 months and then same company hired me as an employee so I got a 1099MISC for the first 6 months I worked for them last year and a W2 for the other 6 months I worked for them as employee. How to explain that to IRS so they don't flag my return as possible misclassification?