Doubt about laptop keyboard data connector?

I recently bought a replacement for my Lenovo IdeaPad v570 keyboard because I spilled some water and several keys won't work.
When I tried to replace it I noticed that the replacement data connector (some people call it ribbon cable) didn't have some sort of blue thicker part at the end (kind of a tape) that the original had, so when you attach it it stays firmly attached.

Is there any solution?

Youve bought a chinese copy
don't panic these sometimes work (same happened to me )
fit it and see what happens