Foreign Luxembourg resident with passport less than 6 months validity

I am not sure if this was asked already.

I am researching for passport validity for Schengen for non-EU long term residents but I cant find any answer.

My passport will expire on May 2019 and I am currently on holiday outside of EU and returning to Luxembourg on Jan 2019. I understand that passport should have a validity at least 3 months from the departure date. I have a long term resident status and my residence permit is still valid for at least 3 years.

Will I have an issue to enter the Schengen area?

Thanks a lot for your help.