Tinkering OpenWRT (4) : make config

When I tried to configure my make config menu for openwrt, I got:

Your display is too small to run Menuconfig!
It must be at least 19 lines by 80 columns.
/home/boris/workspace/openWRT/WRTKernel/source/include/toplevel.mk:136: recipe for target 'menuconfig' failed
make: *** [menuconfig] Error 1

Don't worry, this simply means you have to maximize your terminal window.