diff --git a/docs/index.html b/docs/index.html
index 1b60eba..e9872d6 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -65,7 +65,7 @@ models for all bitstreams generated by Lattice iCEcube2 for the iCE40
 HX1K-TQ144 and the iCE40 HX8K-CT256 using our <tt>icebox_vlog</tt> tool.
 </p>
 
-<p>
+<p id="flags">
 Here is a list of currently supported parts and the corresponding options for arachne-pnr (place and route) and icetime (timing analysis):
 </p>
 
@@ -120,7 +120,7 @@ A simple timing analysis report can be generated using the <tt>icetime</tt> util
 
 <pre style="padding-left: 3em">icetime -tmd hx1k rot.asc</pre>
 
-<h2>Where are the Tools? How to install?</h2>
+<h2 id="install">Where are the Tools? How to install?</h2>
 
 <p>
 Installing prerequisites (this command is for Ubuntu 14.04):
@@ -265,7 +265,7 @@ If you have a bug report please file an issue on github. (<a href="https://githu
 <a href="https://github.com/cliffordwolf/yosys/issues">Yosys Issue Tracker</a>, <a href="https://github.com/cseed/arachne-pnr/issues">Arachne-PNR Issue Tracker</a>)
 </p>
 
-<h2>Where is the Documentation?</h2>
+<h2 id="docs">Where is the Documentation?</h2>
 
 <p>
 Recommended reading: