Control-clicking in order to right-click (my mouse does not have a right-click) does not work in Minecraft 1.6

My mouse does not have a right-click, and until now I used control-click to right-click. When I opened up Minecraft 1.6 and tried to open a chest using control-click, it hit the chest instead of opening it. I don't know why this happened. Can this be fixed, or will I just have to use another button to replace right-click?