I deleted a partition on my macbook pro and now that space is not visible in Disk Utility

I had a dual boot setup on my 1TB drive on my macbook with a linux partition. I decided to delete the linux partition and free up some space for my OSX partition. I went into recovery mode and first erased the linux swap partition then the linux partition. Then I went into the partition tab on Disk Utility and clicked on the "-" button for each swap partition and linux partition. Now when I go into Disk Utility now though the 500 GB that should have been freed up is not visible and I cant resize the OSX partition to include the extra space.