diff --git a/nim.cfg b/nim.cfg
index ba9b3b9a4..a4082ac65 100644
--- a/nim.cfg
+++ b/nim.cfg
@@ -30,3 +30,5 @@
   --debugger:native
 @end
 
+-d:nimOldCaseObjects # https://github.com/status-im/nim-confutils/issues/9
+