Add missing header.

diff --git a/saml/binding/MessageDecoder.h b/saml/binding/MessageDecoder.h
index dd37718..837eca0 100644 (file)
--- a/saml/binding/MessageDecoder.h
+++ b/saml/binding/MessageDecoder.h
@@ -26,6 +26,7 @@
 #include <saml/base.h>
 
 #include <vector>
+#include <xercesc/util/XMLUniDefs.hpp>
 
 namespace xmltooling {
     class XMLTOOL_API GenericRequest;