1 files changed, 4 insertions, 1 deletions
diff --git a/lib/set.rb b/lib/set.rb
index 43edc7557a..07031bf894 100755
--- a/lib/set.rb
+++ b/lib/set.rb
@@ -525,7 +525,6 @@ class SortedSet < Set
       module_eval {
         # a hack to shut up warning
         alias old_init initialize
-        remove_method :old_init
       }
       begin
         require 'rbtree'
@@ -605,6 +604,10 @@ class SortedSet < Set
           end
         }
       end
+      module_eval {
+        # a hack to shut up warning
+        remove_method :old_init
+      }
 
       @@setup = true
     end