diff --git a/src/lightscribe.xml b/src/lightscribe.xml
index 3323e7c..711c9b6 100644
--- a/src/lightscribe.xml
+++ b/src/lightscribe.xml
@@ -24,7 +24,7 @@
 <node>
   <interface name="org.lightscribe.printManager">
     <method name="getDrives">
-      <annotation name="com.trolltech.QtDBus.QtTypeName.Out0" value="QMap &lt;QString,QString&gt;"/>
+      <annotation name="com.trolltech.QtDBus.QtTypeName.Out0" value="QObject2StringMap"/>
       <arg type="a{ss}" direction="out"/>
     </method>
   </interface>
diff --git a/src/qlightscribe.cpp b/src/qlightscribe.cpp
index 0c43abb..d5b571f 100644
--- a/src/qlightscribe.cpp
+++ b/src/qlightscribe.cpp
@@ -26,6 +26,7 @@
 #include <QBuffer>
 #include <QTemporaryFile>
 #include <QDBusConnection>
+#include <QDBusArgument>
 #include <QMessageBox>
 
 //#include <lightscribe_cxx.h>
diff --git a/src/qlightscribe.h b/src/qlightscribe.h
index c76d887..1be57cb 100644
--- a/src/qlightscribe.h
+++ b/src/qlightscribe.h
@@ -24,8 +24,8 @@
 #include "qlscribe.h"
 
 #include <QPixmap>
-#include <QMetaType>
 #include <QMap>
+#include <QMetaType>
 
 class QCDScene;
 class QLightDrive;
@@ -46,7 +46,7 @@ struct PrintParameters {
 
 Q_DECLARE_METATYPE( PrintParameters );
 
-typedef QMap<QString, QString> QObject2StringMap;
+typedef QMap<QString,QString> QObject2StringMap;
 Q_DECLARE_METATYPE( QObject2StringMap );
 
 class OrgLightscribePrintManagerInterface;