1 files changed, 1 insertions, 1 deletions
diff --git a/mrblib/hash.rb b/mrblib/hash.rb
index dc85c8f5e..7b7b3f8ac 100644
--- a/mrblib/hash.rb
+++ b/mrblib/hash.rb
@@ -110,7 +110,7 @@ class Hash
   end
 
   # 1.9 Hash#select! returns Hash; ISO says nothing.
-  def reject!(&b)
+  def select!(&b)
     keys = []
     self.each_key{|k|
       v = self[k]