GNU screen tab gets renamed whenever I type a command

When I use gnu screen, in other tabs, I ssh into other machines, rename the tab accordingly, and do work normally. The tab name sticks. In a fresh tab, which is just a terminal on the original machine, whenever I type any command, the tab gets renamed to the current working directory. Example: /////////// here's how everything looks beforehand [me@mac ~]$ [ me ][0*$ me@mac:~ 1-$ web01 2$ dev03 ////////// setting the tab name [me@mac ~]$ Set window's title to: test [ me ][0*$ test 1-$ web01 clone 2$ dev03 clone //////// typing a command: pwd [me@mac ~]$ pwd /home/me [me@mac ~]$ [ me ][0*$ me@mac:~ 1-$ web01 clone 2$ dev03 clone and the tab is renamed back to the current working dir. This doesn't happen in any tab where I'm ssh'd into another machine. So I thought this might be an issue of my personal settings, but there doesn't seem to be anything in my .bashrc, .bash_profile or .screenrc files that has to do with titles.