diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ae2ab49..97dedd2 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -46,6 +46,14 @@ You can compile the various parsers/extensions by running:
 
 For more information about the available tasks, run `rake -T`.
 
+## Running Benchmarks
+
+Benchmarks are located in the `benchmark` directory. Some of these require
+fixture files which can be generated by running `rake fixtures`. Running a
+benchmark is just a matter of running a Ruby script, for example:
+
+    ruby benchmark/xml/parser/parser_bench.rb
+
 ## Continuous Integration
 
 Two continuous integration services are used to ensure the tests of Oga pass