diff --git a/mdl/m_ops.pas b/mdl/m_ops.pas
index 3cc711a..08223dd 100644
--- a/mdl/m_ops.pas
+++ b/mdl/m_ops.pas
@@ -33,6 +33,8 @@
 {$DEFINE RELEASE}
 {.$DEFINE LOGGING}
 
+{.$DEFINE TESTEDITOR}
+
 { ------------------------------------------------------------------------- }
 
 {$WARNINGS ON}