diff --git a/ground/openpilotgcs/src/plugins/systemhealth/html/SystemConfiguration-BadThrottleOrCollectiveInputRange.html b/ground/openpilotgcs/src/plugins/systemhealth/html/SystemConfiguration-BadThrottleOrCollectiveInputRange.html
index 7318fa2eb..62bb0c4d8 100644
--- a/ground/openpilotgcs/src/plugins/systemhealth/html/SystemConfiguration-BadThrottleOrCollectiveInputRange.html
+++ b/ground/openpilotgcs/src/plugins/systemhealth/html/SystemConfiguration-BadThrottleOrCollectiveInputRange.html
@@ -10,7 +10,7 @@
     There is a problem with throttle/collective channel configuration :
     <ul>
      <li>Redo your input calibration.</li>
-     <li>The range for the channel between min and max must be more than 300us.</li>
+     <li>The range for the channel between min and max must be more than 300µs.</li>
     </ul>
    </p>
   </body>