diff --git a/lib/pp.rb b/lib/pp.rb
index b815a0d499..0202c52073 100644
--- a/lib/pp.rb
+++ b/lib/pp.rb
@@ -210,7 +210,7 @@ class PP < PrettyPrint
     # 
     #   q.seplist([1,2,3]) {|v| xxx v }
     # 
-    #   q.seplist([1,2,3], lambda { comma_breakable }, :each) {|v| xxx v }
+    #   q.seplist([1,2,3], lambda { q.comma_breakable }, :each) {|v| xxx v }
     # 
     #   xxx 1
     #   q.comma_breakable