diff --git a/ext/soap/soap.c b/ext/soap/soap.c
index cc20eff4c7c..27e1403ef9c 100644
--- a/ext/soap/soap.c
+++ b/ext/soap/soap.c
@@ -4022,7 +4022,7 @@ static xmlNodePtr serialize_zval(zval *val, sdlParamPtr param, char *paramName,
 
 	if (param != NULL) {
 		enc = param->encode;
-		if (val == NULL || Z_TYPE_P(val) == IS_NULL) {
+		if (val == NULL) {
 			if (param->element) {
 				if (param->element->fixed) {
 					ZVAL_STRING(&defval, param->element->fixed, 0);
diff --git a/ext/soap/tests/bugs/bug34643.phpt b/ext/soap/tests/bugs/bug34643.phpt
index b8c92e281b7..d05f9bd7f5f 100755
--- a/ext/soap/tests/bugs/bug34643.phpt
+++ b/ext/soap/tests/bugs/bug34643.phpt
@@ -36,6 +36,7 @@ $cl = new LocalSoapClient(dirname(__FILE__).'/bug34643.wsdl', array("trace"=>1))
 print_r($cl->__getFunctions());
 echo $cl->get_it("aaa")."\n";
 echo $cl->get_it()."\n";
+var_dump($cl->get_it(null));
 ?>
 --EXPECT--
 Array
@@ -44,3 +45,4 @@ Array
 )
 aaa
 zzz
+NULL