diff --git a/src/graphics/GraphicsCacheItem.cpp b/src/graphics/GraphicsCacheItem.cpp
index 4ed496a533..306dcdbc3d 100644
--- a/src/graphics/GraphicsCacheItem.cpp
+++ b/src/graphics/GraphicsCacheItem.cpp
@@ -97,7 +97,7 @@ public:
 	/// The filename we refer too.
 	FileName const filename_;
 	/// The document filename this graphic item belongs to
-	FileName const & doc_file_;
+	FileName const doc_file_;
 	///
 	ActiveFileMonitorPtr monitor_;
 
diff --git a/src/graphics/GraphicsConverter.cpp b/src/graphics/GraphicsConverter.cpp
index 84cbaf9b1a..63b6a44633 100644
--- a/src/graphics/GraphicsConverter.cpp
+++ b/src/graphics/GraphicsConverter.cpp
@@ -63,7 +63,7 @@ public:
 	SignalType finishedConversion;
 
 	///
-	FileName const & doc_fname_;
+	FileName const doc_fname_;
 	///
 	string script_command_;
 	///