fix anchor
diff --git a/docs/unpack.html b/docs/unpack.html
index 81d4f0f..7a7bf7a 100644
--- a/docs/unpack.html
+++ b/docs/unpack.html
@@ -93,7 +93,7 @@
   the <a href="#decompressConcatenated">decompressConcatenated</a>
   attribute.</p>
 
-<h3><a name="gunzip">Undeflate</a></h3>
+<h3><a name="undeflate">Undeflate</a></h3>
 
 <p>Is an <a href="#unpack">uncompressing task</a> that uses the DEFLATE
   compression algorithm.</p>