diff --git a/mercurial/helptext/config.txt b/mercurial/helptext/config.txt
--- a/mercurial/helptext/config.txt
+++ b/mercurial/helptext/config.txt
@@ -1832,7 +1832,7 @@
     ``json``
       Render profiling data as JSON.
 
-``frequency``
+``freq``
     Sampling frequency.  Specific to the ``stat`` sampling profiler.
     (default: 1000)