diff --git a/lib/csv.rb b/lib/csv.rb
index aef96ac..89e1a2b 100644
--- a/lib/csv.rb
+++ b/lib/csv.rb
@@ -2327,7 +2327,7 @@ def liberal_parsing?
   attr_reader :encoding
 
   # :call-seq:
-  #   csv.line_no -> integer
+  #   csv.lineno -> integer
   #
   # Returns the count of the rows parsed or generated.
   #