diff --git a/calibration.html b/calibration.html
index cfea13e..12b2940 100644
--- a/calibration.html
+++ b/calibration.html
@@ -63,7 +63,7 @@
                 <li>4 top layers, 3 bottom layers, 3 perimeters</li>
                 <li>20% rectilinear infill</li>
             </ul>
-            <p>The default start gcode is as follows (this can be completely replaced by ticking the approprpriate option on each form):</p>
+            <p>The default start gcode is as follows (this can be completely replaced by ticking the appropriate option on each form):</p>
 <pre>; G-Code originally generated by Simplify3D(R) Version 4.1.2
 ; This calibration test gcode modified by the Teaching Tech Calibration website: https://teachingtechyt.github.io/calibration.html
 ;M80 ; power supply on