diff --git a/lib/scanf.rb b/lib/scanf.rb
index 495f8705a4..42fa548025 100644
--- a/lib/scanf.rb
+++ b/lib/scanf.rb
@@ -742,7 +742,7 @@ class String
   # If a block is given, the value from that is returned from
   # the yield is added to an output array.
   #
-  #   "123 456".block_scanf("%d) do |digit,| # the ',' unpacks the Array
+  #   "123 456".block_scanf("%d") do |digit,| # the ',' unpacks the Array
   #     digit + 100
   #   end
   #   # => [223, 556]