diff --git a/nmap.cc b/nmap.cc
index b73dfb4f5..24ef5149e 100644
--- a/nmap.cc
+++ b/nmap.cc
@@ -1737,7 +1737,7 @@ int nmap_main(int argc, char *argv[]) {
   Strncpy(mytime, ctime(&timep), sizeof(mytime));
   chomp(mytime);
   char *xslfname = o.XSLStyleSheet();
-  xml_start_document();
+  xml_start_document("nmaprun");
   if (xslfname) {
     xml_open_pi("xml-stylesheet");
     xml_attribute("href", "%s", xslfname);
diff --git a/xml.cc b/xml.cc
index e75287031..d391171c2 100644
--- a/xml.cc
+++ b/xml.cc
@@ -308,8 +308,10 @@ int xml_write_escaped_v(const char *fmt, va_list va) {
   return 0;
 }
 
-/* Write the XML declaration: <?xml version="1.0"?>. */
-int xml_start_document() {
+/* Write the XML declaration: <?xml version="1.0"?>
+ * and the DOCTYPE declaration: <!DOCTYPE rootnode>
+ */
+int xml_start_document(const char *rootnode) {
   if (xml_open_pi("xml") < 0)
     return -1;
   if (xml_attribute("version", "1.0") < 0)
@@ -319,7 +321,7 @@ int xml_start_document() {
   if (xml_newline() < 0)
     return -1;
 
-  log_write(LOG_XML, "<!DOCTYPE nmaprun PUBLIC \"-//IDN nmap.org//DTD Nmap XML %s//EN\" \"https://svn.nmap.org/nmap/docs/nmap.dtd\">\n", NMAP_XMLOUTPUTVERSION);
+  log_write(LOG_XML, "<!DOCTYPE %s>\n", rootnode);
 
   return 0;
 }
diff --git a/xml.h b/xml.h
index a473d5efe..568daca57 100644
--- a/xml.h
+++ b/xml.h
@@ -129,7 +129,7 @@ int xml_write_raw(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
 int xml_write_escaped(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
 int xml_write_escaped_v(const char *fmt, va_list va) __attribute__ ((format (printf, 1, 0)));
 
-int xml_start_document();
+int xml_start_document(const char *rootnode);
 
 int xml_start_comment();
 int xml_end_comment();