?q=gallery at the end of embedded url?

I have Gallery 2.3 embedded inside Drupal 5 working great but I noticed that the url of my embedded gallery differs from standalone in that there's a ?q=gallery at the end of every url like index.php/v/Other/?q=gallery when the standalone url is just gallery2/main.php/v/Other/.

Is this normal? Or is there a way to get rid of ?q=gallery from the end of the embedded url?

Thanks.