Texture after mirror is not match ?

[crossfirehg6]

I modeled a half of a model and paint texture for that

But when I mirror, the mirrored texture part is not match with texture in the original part.
See the picture below

Edited: Here is the .blend file: https://drive.google.com/file/d/0B6Q2wYc0kyIjaHkwdVhQaU5qT00/view?usp=sharing

Help me!

Attachments

[JA12]

It’s an n-gon face with 5 vertices, and looks like it gets triangulated differently than the other side. Triangulating it with a modifier, or just splitting the face to a triangle and a quad fixes it.