Decimal separator setting for the Spotlight calculator I use the Spotlight calculator a lot but since the upgrade to OS X Mavericks the decimal pointer has changed to a , instead of the . as in a previous release. Probably it now respects some locale setting but I cannot find which.

I reside in a German speaking country but use a US keyboard, the interface is set to English, the region formats are set to United States (with the exception of the currency being set to Euro), see this screenshot.



Still, the calculator expects a , as a decimal separator:

1+.5


gives no result, while

1+,5


prints 1+,5 = 1,5

How can I change the decimal separator back to a .?

Edit: As you can see in the screenshot the decimal point is set to . through these settings. Spotlight ignores that setting until you reboot (which I hadn't done at the time).
You can change the settings from the Advanced...button in the Language &amp; Region preference pane. 

Remember that you have to either reboot or log out for the changes to be applied to Spotlight!