diff --git a/calibration.html b/calibration.html
index ed4cf33..8b573c9 100644
--- a/calibration.html
+++ b/calibration.html
@@ -716,7 +716,7 @@
             <pre>G1 E50 F360</pre>
             <pre>...</pre>
             <li>After you find the limiting speed, back off and repeat the test at a lower feedrate several times in a row until you are confident of reliable and repeatable extrusion.</li>
-            <li>Enter your reliable feerate and filament diameter below:</li>
+            <li>Enter your reliable feedrate and filament diameter below:</li>
             <label>Reliable feedrate: <input type="number" min="60" max="1000" name="maxFeed" value="180" step="10" onchange="maxExt(); maxFee();"></label>
             <label>Filament diameter: <input type="number" min="1.5" max="4" name="filDia" value="1.75" step="0.05" onchange="maxExt(); maxFee();"></label>
             <p class="result">Your maximum reliable extrusion speed is <b><span id="maxExt">7.22</span> mm/3</b> per second.</p>