diff --git a/virtualshelves/addbybiblionumber.pl b/virtualshelves/addbybiblionumber.pl
index b636c1226f..d53a8c4e82 100755
--- a/virtualshelves/addbybiblionumber.pl
+++ b/virtualshelves/addbybiblionumber.pl
@@ -59,6 +59,7 @@
 =cut
 
 use strict;
+#use warnings; FIXME - Bug 2505
 use C4::Biblio;
 use CGI;
 use C4::Output;