diff --git a/ext/dom/node.c b/ext/dom/node.c
index fa7ce577709..c067955a7c2 100644
--- a/ext/dom/node.c
+++ b/ext/dom/node.c
@@ -178,15 +178,29 @@ const zend_function_entry php_dom_node_class_functions[] = { /* {{{ */
 
 static void dom_reconcile_ns(xmlDocPtr doc, xmlNodePtr nodep) /* {{{ */
 {
-	xmlNsPtr nsptr;
+	xmlNsPtr nsptr, nsdftptr, curns, prevns = NULL;
 
 	if (nodep->type == XML_ELEMENT_NODE) {
 		/* Following if block primarily used for inserting nodes created via createElementNS */
-		if (nodep->nsDef != NULL && nodep->nsDef->href != NULL) {
-			if((nsptr = xmlSearchNsByHref(doc, nodep->parent, nodep->nsDef->href)) && 
-				(nodep->nsDef->prefix == NULL || xmlStrEqual(nsptr->prefix, nodep->nsDef->prefix))) {
-				dom_set_old_ns(doc, nodep->nsDef);
-				nodep->nsDef = NULL;
+		if (nodep->nsDef != NULL) {
+			curns = nodep->nsDef;
+			while (curns) {
+				nsdftptr = curns->next;
+				if (curns->href != NULL) {
+					if((nsptr = xmlSearchNsByHref(doc, nodep->parent, curns->href)) && 
+						(curns->prefix == NULL || xmlStrEqual(nsptr->prefix, curns->prefix))) {
+						curns->next = NULL;
+						if (prevns == NULL) {
+							nodep->nsDef = nsdftptr;
+						} else {
+							prevns->next = nsdftptr;
+						}
+						dom_set_old_ns(doc, curns);
+						curns = prevns;
+					}
+				}
+				prevns = curns;
+				curns = nsdftptr;
 			}
 		}
 		xmlReconciliateNs(doc, nodep);
diff --git a/ext/dom/tests/bug46185.phpt b/ext/dom/tests/bug46185.phpt
new file mode 100644
index 00000000000..02117cdd671
--- /dev/null
+++ b/ext/dom/tests/bug46185.phpt
@@ -0,0 +1,23 @@
+--TEST--
+Bug #46185 (importNode changes the namespace of an XML element).
+--SKIPIF--
+<?php require_once('skipif.inc'); ?>
+--FILE--
+<?php 
+$aDOM = new DOMDocument();
+$aDOM->loadXML('<?xml version="1.0"?>
+<ns1:a xmlns:ns1="urn::ns"/>');
+$a= $aDOM->firstChild;
+
+$ok = new DOMDocument();
+$ok->loadXML('<?xml version="1.0"?>
+<ns1:ok xmlns:ns1="urn::ns" xmlns="urn::REAL"><watch-me xmlns:default="urn::BOGUS"/></ns1:ok>');
+
+$imported= $aDOM->importNode($ok->firstChild, true);
+$a->appendChild($imported);
+
+echo $aDOM->saveXML();
+?>
+--EXPECT--
+<?xml version="1.0"?>
+<ns1:a xmlns:ns1="urn::ns"><ns1:ok xmlns="urn::REAL"><watch-me xmlns:default="urn::BOGUS"/></ns1:ok></ns1:a>
\ No newline at end of file