diff --git a/include/crm/common/xml_compat.h b/include/crm/common/xml_compat.h
index d6914b29b8..ecfe4a5f6a 100644
--- a/include/crm/common/xml_compat.h
+++ b/include/crm/common/xml_compat.h
@@ -1,46 +1,47 @@
 /*
  * Copyright 2004-2022 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_COMMON_XML_COMPAT__H
 #  define PCMK__CRM_COMMON_XML_COMPAT__H
 
+#include <glib.h>               // gboolean
 #include <libxml/tree.h>        // xmlNode
-#include <glib.h>
+#include <crm/common/xml.h>     // crm_xml_add()
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /**
  * \file
  * \brief Deprecated Pacemaker XML API
  * \ingroup core
  * \deprecated Do not include this header directly. The XML APIs in this
  *             header, and the header itself, will be removed in a future
  *             release.
  */
 
 //! \deprecated This function will be removed in a future release
 xmlNode *find_entity(xmlNode *parent, const char *node_name, const char *id);
 
 //!  \deprecated Use xml_apply_patchset() instead
 gboolean apply_xml_diff(xmlNode *old_xml, xmlNode *diff, xmlNode **new_xml);
 
 //!  \deprecated Use crm_xml_add() with "true" or "false" instead
 static inline const char *
 crm_xml_add_boolean(xmlNode *node, const char *name, gboolean value)
 {
     return crm_xml_add(node, name, (value? "true" : "false"));
 }
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif // PCMK__CRM_COMMON_XML_COMPAT__H