diff --git a/src/frontend/mame/infoxml.cpp b/src/frontend/mame/infoxml.cpp
index 750808403a518..69749de3a7b94 100644
--- a/src/frontend/mame/infoxml.cpp
+++ b/src/frontend/mame/infoxml.cpp
@@ -208,6 +208,7 @@ constexpr char f_dtd_string[] =
 		"\t\t\t<!ATTLIST disk optional (yes|no) \"no\">\n"
 		"\t\t<!ELEMENT device_ref EMPTY>\n"
 		"\t\t\t<!ATTLIST device_ref name CDATA #REQUIRED>\n"
+		"\t\t\t<!ATTLIST device_ref tag CDATA #REQUIRED>\n"
 		"\t\t<!ELEMENT sample EMPTY>\n"
 		"\t\t\t<!ATTLIST sample name CDATA #REQUIRED>\n"
 		"\t\t<!ELEMENT chip EMPTY>\n"
@@ -1010,7 +1011,7 @@ void output_device_refs(std::ostream &out, device_t &root)
 {
 	for (device_t &device : device_enumerator(root))
 		if (&device != &root)
-			util::stream_format(out, "\t\t<device_ref name=\"%s\"/>\n", util::xml::normalize_string(device.shortname()));
+			util::stream_format(out, "\t\t<device_ref name=\"%s\" tag=\"%s\"/>\n", util::xml::normalize_string(device.shortname()), util::xml::normalize_string(device.tag()));
 }