diff --git a/lib/yarp/desugar_compiler.rb b/lib/yarp/desugar_compiler.rb
index 2cf5fb701a..b86e8518c6 100644
--- a/lib/yarp/desugar_compiler.rb
+++ b/lib/yarp/desugar_compiler.rb
@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
 module YARP
+  # DesugarCompiler is a compiler that desugars Ruby code into a more primitive
+  # form. This is useful for consumers that want to deal with fewer node types.
   class DesugarCompiler < MutationCompiler
     # @@foo &&= bar
     #