diff --git a/framework/inc/helper/mischelper.hxx b/framework/inc/helper/mischelper.hxx
index 39cae9c6a484..84d3dc599795 100644
--- a/framework/inc/helper/mischelper.hxx
+++ b/framework/inc/helper/mischelper.hxx
@@ -148,7 +148,7 @@ class WeakContainerListener : public ::cppu::WeakImplHelper<css::container::XCon
         css::uno::WeakReference<css::container::XContainerListener> mxOwner;
 
     public:
-        WeakContainerListener(css::uno::Reference<css::container::XContainerListener> xOwner)
+        WeakContainerListener(css::uno::Reference<css::container::XContainerListener> const & xOwner)
             : mxOwner(xOwner)
         {
         }
@@ -203,7 +203,7 @@ class WeakChangesListener : public ::cppu::WeakImplHelper<css::util::XChangesLis
         css::uno::WeakReference<css::util::XChangesListener> mxOwner;
 
     public:
-        WeakChangesListener(css::uno::Reference<css::util::XChangesListener> xOwner)
+        WeakChangesListener(css::uno::Reference<css::util::XChangesListener> const & xOwner)
             : mxOwner(xOwner)
         {
         }
@@ -240,7 +240,7 @@ class WeakDocumentEventListener : public ::cppu::WeakImplHelper<css::document::X
         css::uno::WeakReference<css::document::XDocumentEventListener> mxOwner;
 
     public:
-        WeakDocumentEventListener(css::uno::Reference<css::document::XDocumentEventListener> xOwner)
+        WeakDocumentEventListener(css::uno::Reference<css::document::XDocumentEventListener> const & xOwner)
             : mxOwner(xOwner)
         {
         }
diff --git a/framework/inc/xml/imagesdocumenthandler.hxx b/framework/inc/xml/imagesdocumenthandler.hxx
index c46edece15ac..16ffcbea0d65 100644
--- a/framework/inc/xml/imagesdocumenthandler.hxx
+++ b/framework/inc/xml/imagesdocumenthandler.hxx
@@ -135,7 +135,8 @@ class OWriteImagesDocumentHandler
     public:
         OWriteImagesDocumentHandler(
             const ImageListsDescriptor& aItems,
-            css::uno::Reference< css::xml::sax::XDocumentHandler > );
+            css::uno::Reference< css::xml::sax::XDocumentHandler > const &
+                rWriteDocumentHandler);
         virtual ~OWriteImagesDocumentHandler();
 
         void WriteImagesDocument() throw
diff --git a/framework/source/services/desktop.cxx b/framework/source/services/desktop.cxx
index 0ec0bce5bf94..d1f09fb66e8b 100644
--- a/framework/source/services/desktop.cxx
+++ b/framework/source/services/desktop.cxx
@@ -355,7 +355,7 @@ namespace
         Desktop* const m_pDesktop;
         css::uno::Reference< css::frame::XTerminateListener > m_xQuickLauncher;
         public:
-            QuickstartSuppressor(Desktop* const pDesktop, css::uno::Reference< css::frame::XTerminateListener > xQuickLauncher)
+            QuickstartSuppressor(Desktop* const pDesktop, css::uno::Reference< css::frame::XTerminateListener > const & xQuickLauncher)
                 : m_pDesktop(pDesktop)
                 , m_xQuickLauncher(xQuickLauncher)
             {
diff --git a/framework/source/xml/imagesdocumenthandler.cxx b/framework/source/xml/imagesdocumenthandler.cxx
index a04fe0165081..913324f8c7b1 100644
--- a/framework/source/xml/imagesdocumenthandler.cxx
+++ b/framework/source/xml/imagesdocumenthandler.cxx
@@ -588,7 +588,7 @@ OUString OReadImagesDocumentHandler::getErrorLineString()
 
 OWriteImagesDocumentHandler::OWriteImagesDocumentHandler(
     const ImageListsDescriptor& aItems,
-    Reference< XDocumentHandler > rWriteDocumentHandler ) :
+    Reference< XDocumentHandler > const & rWriteDocumentHandler ) :
     m_aImageListsItems( aItems ),
     m_xWriteDocumentHandler( rWriteDocumentHandler )
 {