diff --git a/include/crm/msg_xml_compat.h b/include/crm/msg_xml_compat.h
index dd94edaa9c..e53d41f392 100644
--- a/include/crm/msg_xml_compat.h
+++ b/include/crm/msg_xml_compat.h
@@ -1,40 +1,44 @@
 /*
  * Copyright 2004-2024 the Pacemaker project contributors
  *
  * The version control history for this file may have further details.
  *
  * This source code is licensed under the GNU Lesser General Public License
  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
  */
 
 #ifndef PCMK__CRM_MSG_XML_COMPAT__H
 #define PCMK__CRM_MSG_XML_COMPAT__H
 
 #include <crm/common/xml.h> // PCMK_XE_CIB
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /**
  * \file
  * \brief Deprecated Pacemaker XML constants API
  * \ingroup core
  * \deprecated Do not include this header directly. The XML constants in this
  *             header, and the header itself, will be removed in a future
  *             release.
  */
 
 // NOTE: sbd (as of at least 1.5.2) uses this
 //! \deprecated Use \c PCMK_XE_CIB instead
 #define XML_TAG_CIB PCMK_XE_CIB
 
 // NOTE: sbd (as of at least 1.5.2) uses this
 //! \deprecated Do not use
 #define XML_CIB_TAG_STATE "node_state"
 
+// NOTE: sbd (as of at least 1.5.2) uses this
+//! \deprecated Do not use
+#define XML_TAG_TRANSIENT_NODEATTRS "transient_attributes"
+
 #ifdef __cplusplus
 }
 #endif
 
 #endif // PCMK__CRM_MSG_XML_COMPAT__H