Is it ok if when i come back from Macau, the validity is almost less than 6 months?

Good day, I'm about to go to macau this June 25-29, 2009 and my Philippine passport is about to expire on 29 December 2009. Is it ok if when i come back here, the validity is almost less than 6 months? Do u think that i might encounter some problems in the airport or immigrations? your prompt reply will highly appreciated. thank you.