diff --git a/apps/locale/locale.html b/apps/locale/locale.html
index 645d6b2db..ff1831466 100644
--- a/apps/locale/locale.html
+++ b/apps/locale/locale.html
@@ -164,10 +164,7 @@ exports = { name : "en_GB", currencySym:"£",
         var currency = locale.currency_first ?
           `${js(locale.currency_symbol)} + n.toFixed(2)`:
           `n.toFixed(2) + ${js(locale.currency_symbol)}`;
-        var temperature;
-        if (locale.temperature=='°C') temperature="t";
-        else if (locale.temperature=='°F') temperature="(t*9/5)+32";
-        else throw new Error("Unknown temperature unit "+locale.temperature);
+        var temperature = locale.temperature=='°F' ? '(t*9/5)+32' : 't';
 
         var localeModule = `var l = ${js({
           abday : locale.abday,