diff --git a/pep-3100.txt b/pep-3100.txt
index c0bccba02..5eba080e6 100644
--- a/pep-3100.txt
+++ b/pep-3100.txt
@@ -199,6 +199,7 @@ Standard library
 
 To be removed:
 
+* The sets module.  [done]
 * stdlib modules to be removed
     + see docstrings and comments in the source
         - ``macfs``, ``new``, ``reconvert``, ``stringold``, ``xmllib``,