diff --git a/dcmiod/libsrc/modmultiframedimension.cc b/dcmiod/libsrc/modmultiframedimension.cc
index 28e0f3dac..524dd1ca6 100644
--- a/dcmiod/libsrc/modmultiframedimension.cc
+++ b/dcmiod/libsrc/modmultiframedimension.cc
@@ -1,6 +1,6 @@
 /*
  *
- *  Copyright (C) 2015-2024, Open Connections GmbH
+ *  Copyright (C) 2015-2025, Open Connections GmbH
  *  All rights reserved.  See COPYRIGHT file for details.
  *
  *  This software and supporting documentation are maintained by
@@ -46,6 +46,7 @@ IODMultiframeDimensionModule::IODMultiframeDimensionModule()
     : IODModule()
     , m_DimensionIndexSequence()
     , m_DimensionOrganizationSequence()
+    , m_CheckOnWrite(OFTrue)
 {
     resetRules();
 }