1 files changed, 1 insertions, 1 deletions
diff --git a/include/oox/ppt/soundactioncontext.hxx b/include/oox/ppt/soundactioncontext.hxx
index 4680332a4fe4..99435959c472 100644
--- a/include/oox/ppt/soundactioncontext.hxx
+++ b/include/oox/ppt/soundactioncontext.hxx
@@ -36,7 +36,7 @@ namespace oox { namespace ppt {
 class SoundActionContext : public ::oox::core::FragmentHandler2
 {
 public:
-    SoundActionContext( ::oox::core::FragmentHandler2& rParent, PropertyMap & aProperties ) throw();
+    SoundActionContext( ::oox::core::FragmentHandler2 const & rParent, PropertyMap & aProperties ) throw();
     virtual ~SoundActionContext() throw() override;
 
     virtual void onEndElement() override;