diff --git a/NEWS b/NEWS
index e2b1b46fa41..ec9ce161f63 100644
--- a/NEWS
+++ b/NEWS
@@ -24,6 +24,7 @@ PHP                                                                        NEWS
   . Add missing hierarchy checks to replaceChild. (nielsdos)
   . Fixed bug GH-16336 (Attribute intern document mismanagement). (nielsdos)
   . Fixed bug GH-16338 (Null-dereference in ext/dom/node.c). (nielsdos)
+  . Fixed bug GH-16473 (dom_import_simplexml stub is wrong). (nielsdos)
 
 - EXIF:
   . Fixed bug GH-16409 (Segfault in exif_thumbnail when not dealing with a
diff --git a/ext/dom/php_dom.stub.php b/ext/dom/php_dom.stub.php
index b588d31d1d3..a5768106c74 100644
--- a/ext/dom/php_dom.stub.php
+++ b/ext/dom/php_dom.stub.php
@@ -975,4 +975,4 @@ class DOMXPath
 }
 #endif
 
-function dom_import_simplexml(object $node): DOMElement {}
+function dom_import_simplexml(object $node): DOMAttr|DOMElement {}
diff --git a/ext/dom/php_dom_arginfo.h b/ext/dom/php_dom_arginfo.h
index 9eae1c58f14..763c284f995 100644
--- a/ext/dom/php_dom_arginfo.h
+++ b/ext/dom/php_dom_arginfo.h
@@ -1,7 +1,7 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: a20d21c1796ebb43028856f0ec2d53dcaded6cc0 */
+ * Stub hash: 4ce58367281bbbefffe2925d34830c717b6b4208 */
 
-ZEND_BEGIN_ARG_WITH_RETURN_OBJ_INFO_EX(arginfo_dom_import_simplexml, 0, 1, DOMElement, 0)
+ZEND_BEGIN_ARG_WITH_RETURN_OBJ_TYPE_MASK_EX(arginfo_dom_import_simplexml, 0, 1, DOMAttr|DOMElement, 0)
 	ZEND_ARG_TYPE_INFO(0, node, IS_OBJECT, 0)
 ZEND_END_ARG_INFO()
 
diff --git a/ext/dom/tests/gh16473.phpt b/ext/dom/tests/gh16473.phpt
new file mode 100644
index 00000000000..f4f7308ca90
--- /dev/null
+++ b/ext/dom/tests/gh16473.phpt
@@ -0,0 +1,13 @@
+--TEST--
+GH-16473 (dom_import_simplexml stub is wrong)
+--EXTENSIONS--
+dom
+simplexml
+--FILE--
+<?php
+$root = simplexml_load_string('<root xmlns:x="urn:x" x:attr="foo"/>');
+$attr = $root->attributes('urn:x');
+var_dump(dom_import_simplexml($attr)->textContent);
+?>
+--EXPECT--
+string(3) "foo"