diff --git a/doc/go_spec.html b/doc/go_spec.html
index 96bf8b721f3..f0aac6b1411 100644
--- a/doc/go_spec.html
+++ b/doc/go_spec.html
@@ -4894,7 +4894,7 @@ a no-op. Calling <code>delete</code> with a nil map causes a
 </p>
 
 
-<h3 id="Complex_numbers">Assembling and disassembling complex numbers</h3>
+<h3 id="Complex_numbers">Manipulating complex numbers</h3>
 
 <p>
 Three functions assemble and disassemble complex numbers.