diff --git a/doc.html b/doc.html
index aff20f84..b262d8fd 100644
--- a/doc.html
+++ b/doc.html
@@ -127,8 +127,8 @@
           default zoom range is <0, 19> and the default bounds are
           &lt;-85.0511,&nbsp;85.0511&gt; and &lt;-180,&nbsp;180&gt;.</p>
 
-          <p>Since version 5.17, GPXSee supports HiDPI map tiles. To specify, that a map
-          uses HiDPI tiles, use the <i>tilePixelRatio</i> tag. For the most common 512x512px
+          <p>Since version 5.17 GPXSee supports HiDPI map tiles. To specify that a map
+          uses HiDPI tiles use the <i>tilePixelRatio</i> tag. For the most common 512x512px
           tiles (that shall be rendered as 256x256px) tiles, set the value to 2.</p>
 
           <h4 id="WMTS">WMTS</h4>