diff --git a/vyper/ast/parse.py b/vyper/ast/parse.py
index 31977ca52b..b657cf2245 100644
--- a/vyper/ast/parse.py
+++ b/vyper/ast/parse.py
@@ -240,8 +240,8 @@ def visit_For(self, node):
 
         try:
             annotation = python_ast.parse(raw_annotation, mode="eval")
-            # enhance the Python AST tree with token and source code information, specifically the
-            # `first_token` and `last_token` attributes that are accessed in `generic_visit`.
+            # annotate with token and source code information. `first_token`
+            # and `last_token` attributes are accessed in `generic_visit`.
             tokens = asttokens.ASTTokens(raw_annotation)
             tokens.mark_tokens(annotation)
         except SyntaxError as e: