diff --git a/spring-ws-core/src/main/java/org/springframework/ws/soap/axiom/AxiomSoapBody.java b/spring-ws-core/src/main/java/org/springframework/ws/soap/axiom/AxiomSoapBody.java
index 1eff994b..396cf2bf 100644
--- a/spring-ws-core/src/main/java/org/springframework/ws/soap/axiom/AxiomSoapBody.java
+++ b/spring-ws-core/src/main/java/org/springframework/ws/soap/axiom/AxiomSoapBody.java
@@ -16,6 +16,7 @@
 
 package org.springframework.ws.soap.axiom;
 
+import javax.xml.namespace.QName;
 import javax.xml.transform.Result;
 import javax.xml.transform.Source;
 
@@ -71,7 +72,11 @@ abstract class AxiomSoapBody extends AxiomSoapElement implements SoapBody {
 	public void setStreamingPayload(StreamingPayload payload) {
 		Assert.notNull(payload, "'payload' must not be null");
 		OMDataSource dataSource = new StreamingOMDataSource(payload);
-		OMElement payloadElement = getAxiomFactory().createOMElement(dataSource, payload.getName());
+		SOAPFactory factory = getAxiomFactory();
+		QName name = payload.getName();
+		// Ignore the prefix; only the namespace URI and local name are significant
+		OMElement payloadElement = factory.createOMElement(dataSource, name.getLocalPart(),
+				factory.createOMNamespace(name.getNamespaceURI(), null));
 
 		SOAPBody soapBody = getAxiomBody();
 		AxiomUtils.removeContents(soapBody);
diff --git a/spring-ws-core/src/main/java/org/springframework/ws/stream/StreamingPayload.java b/spring-ws-core/src/main/java/org/springframework/ws/stream/StreamingPayload.java
index d0436966..5e625eac 100644
--- a/spring-ws-core/src/main/java/org/springframework/ws/stream/StreamingPayload.java
+++ b/spring-ws-core/src/main/java/org/springframework/ws/stream/StreamingPayload.java
@@ -30,7 +30,9 @@ import javax.xml.stream.XMLStreamWriter;
 public interface StreamingPayload {
 
 	/**
-	 * Returns the qualified name of the payload.
+	 * Returns the qualified name of the payload. Only the namespace URI and local part of the
+	 * returned qualified name are significant; they must match the name of the root element
+	 * produced by {@link #writeTo(XMLStreamWriter)}.
 	 *
 	 * @return the qualified name
 	 */
diff --git a/spring-ws-core/src/test/java/org/springframework/ws/soap/AbstractSoapMessageTestCase.java b/spring-ws-core/src/test/java/org/springframework/ws/soap/AbstractSoapMessageTestCase.java
index d0f5e8d2..f317a0ea 100644
--- a/spring-ws-core/src/test/java/org/springframework/ws/soap/AbstractSoapMessageTestCase.java
+++ b/spring-ws-core/src/test/java/org/springframework/ws/soap/AbstractSoapMessageTestCase.java
@@ -102,14 +102,15 @@ public abstract class AbstractSoapMessageTestCase extends AbstractMimeMessageTes
 		}
 		StreamingWebServiceMessage streamingMessage = (StreamingWebServiceMessage) soapMessage;
 
-		final QName name = new QName("http://springframework.org", "root", "prefix");
+		final QName name = new QName("http://springframework.org", "root", "");
 		streamingMessage.setStreamingPayload(new StreamingPayload() {
 			public QName getName() {
 				return name;
 			}
 
 			public void writeTo(XMLStreamWriter streamWriter) throws XMLStreamException {
-				streamWriter.writeStartElement(name.getPrefix(), name.getLocalPart(), name.getNamespaceURI());
+				// Use a prefix that is different from the one reported by getName()
+				streamWriter.writeStartElement("prefix", name.getLocalPart(), name.getNamespaceURI());
 				streamWriter.writeNamespace("prefix", name.getNamespaceURI());
 				streamWriter.writeStartElement(name.getNamespaceURI(), "child");
 				streamWriter.writeCharacters("Foo");