diff --git a/releng/codesamples/sample2.cpp b/releng/codesamples/sample2.cpp
index 8c5cefb2..6d0b8622 100644
--- a/releng/codesamples/sample2.cpp
+++ b/releng/codesamples/sample2.cpp
@@ -7,7 +7,8 @@
 #include <libburn/libburn.h>
 #include <libisofs/libisofs.h>
 
-using namespace burn;
+// using namespace burn;
+// (this was needed to before rev.4062 of libisoburn)
 
 #include "libisoburn/libisoburn.h"