--- src/lib/RVNGBinaryData.cpp	2024-05-10 13:20:09.278288686 +0200
+++ src/lib/RVNGBinaryData.cpp	2024-05-10 13:23:14.365139906 +0200
@@ -93,7 +93,7 @@
 
 void RVNGBinaryDataImpl::makeUnique()
 {
-	if (!m_ptr.unique())
+	if (!(m_ptr.use_count() == 1))
 	{
 		std::shared_ptr<DataImpl> ptr(new DataImpl());
 		ptr->m_buf = m_ptr->m_buf;