diff --git a/settings.html b/settings.html
index d7e0044..086d2eb 100755
--- a/settings.html
+++ b/settings.html
@@ -75,7 +75,7 @@
       <label for="retractionSpeed">Retraction speed:</label><input id="retractionSpeed" type="number" class="small" name="printer.retraction.speed">mm/s<br>
       <br>
 			<label for="heatupEnabled">Auto preheat:</label><input id="heatupEnabled" type="checkbox" name="printer.heatup.enabled" value="heatupEnabled"><br>
-      <label for="heatupTemperature">Auto preaheat temperature:</label><input id="heatupTemperature" type="text" name="printer.heatup.temperature"><br>
+      <label for="heatupTemperature">Auto preaheat temperature:</label><input id="heatupTemperature" type="number" class="small" name="printer.heatup.temperature"><br>
     </fieldset>
 
 		<fieldset id="doodlesettings">