diff --git a/function/smooth/17-smooth.html b/function/smooth/17-smooth.html
index 81643a1b..1083ec1a 100644
--- a/function/smooth/17-smooth.html
+++ b/function/smooth/17-smooth.html
@@ -10,6 +10,7 @@
             <option value="max">Return the maximum value seen</option>
             <option value="min">Return the minimum value seen</option>
             <option value="mean">Return the mean value</option>
+            <option value="median">Return the median value</option>
             <option value="sd">Return the standard deviation</option>
             <option value="low">Perform low pass filter</option>
             <option value="high">Perform high pass filter</option>