1 files changed, 4 insertions, 2 deletions
diff --git a/lib/ostruct.rb b/lib/ostruct.rb
index 45ebb8083e..0ac6852433 100644
--- a/lib/ostruct.rb
+++ b/lib/ostruct.rb
@@ -68,8 +68,10 @@ class OpenStruct
   end
 
   def modifiable
-    if self.frozen?
-      raise TypeError, "can't modify frozen #{self.class}", caller(2)
+    begin
+      @modifiable = true
+    rescue
+      raise TypeError, "can't modify frozen #{self.class}", caller(3)
     end
     @table
   end