Vifm background of highlighting changes inside tmux

Question

I am using vifm inside tmux on Ubuntu 14.10. It looks great outside of tmux but inside tmux I have a problem with a highlighting line. I had almost the same problem with vim (vim in tmux background color changes when paging) but after applying :set t_ut= it works now.

Here is how vifm looks inside tmux (the highlighting line is supposed to take a whole line)

Answer 1

The value of $TERM inside tmux session was xterm-256color. I changed it to screen-256color. Now it works. Thanks @xaizek for the hint.