diff --git a/src/org/olap4j/driver/xmla/proxy/XmlaOlap4jHttpProxy.java b/src/org/olap4j/driver/xmla/proxy/XmlaOlap4jHttpProxy.java
index 36661c3..c1273e0 100644
--- a/src/org/olap4j/driver/xmla/proxy/XmlaOlap4jHttpProxy.java
+++ b/src/org/olap4j/driver/xmla/proxy/XmlaOlap4jHttpProxy.java
@@ -3,7 +3,7 @@
 // This software is subject to the terms of the Eclipse Public License v1.0
 // Agreement, available at the following URL:
 // http://www.eclipse.org/legal/epl-v10.html.
-// Copyright (C) 2007-2010 Julian Hyde
+// Copyright (C) 2007-2011 Julian Hyde
 // All Rights Reserved.
 // You must accept the terms of that agreement to use this software.
 */
@@ -77,13 +77,13 @@ public byte[] getResponse(URL url, String request)
             {
                 urlConnection.setRequestProperty(
                     "SOAPAction",
-                    "urn:schemas-microsoft-com:xml-analysis:Discover");
+                    "\"urn:schemas-microsoft-com:xml-analysis:Discover\"");
             } else if (request.contains(
                 "<Execute xmlns=\"urn:schemas-microsoft-com:xml-analysis\""))
             {
                 urlConnection.setRequestProperty(
                         "SOAPAction",
-                        "urn:schemas-microsoft-com:xml-analysis:Execute");
+                        "\"urn:schemas-microsoft-com:xml-analysis:Execute\"");
             }
 
             // Encode credentials for basic authentication