diff --git a/nimpretty/nimpretty.nim.cfg b/nimpretty/nimpretty.nim.cfg
index 9eb185370e..b4fac53776 100644
--- a/nimpretty/nimpretty.nim.cfg
+++ b/nimpretty/nimpretty.nim.cfg
@@ -1,3 +1,3 @@
 --define: nimpretty
 --define: nimpretty2
--define: nimOldCaseObjects
+--define: nimOldCaseObjects