Onscreen credit of surname has space or not

Tina DiJoseph - IMDb

Medium (TV Series 2005–2011) - IMDb

Tina DiJoseph has total 40 episodes appearance in Medium. Some of the episodes are credited as Tina Di Joseph, with a space between Di & Joseph. However it seems to me that her credit is always the same. It may look like there is a space between them but the letter J has occupied the space.

I've attached 2 of the episodes and would the staff please check if there is a space or not. If there is, then we need to add attribute as Tina Di Joseph to all of the episodes. If not, then we need to remove all attribute as Tina Di Joseph.