diff --git a/doc.html b/doc.html
index 047a38de..ed102193 100644
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+++ b/doc.html
@@ -133,6 +133,14 @@
 
 <pre>
 $ gpxsee geo:50.0797778,14.4297314
+</pre>
+
+          <p>Although RFC5870 discourages the use of coorinate systems (CRS) other than
+          wgs84, GPXSee supports all the CRSs defined in its GCS/PCS files, i.e. you can
+          also use URIs like:</p>
+
+<pre>
+gpxsee 'geo:323482,4306480;crs=EPSG:32618'
 </pre>
 
           <h2 id="maps">Maps</h2>