diff --git a/Doc/Tdoc/projects.xml b/Doc/Tdoc/projects.xml
index 3aec6383c3c6384fcc8e1a5dca5ffb2e5498e8ee..9c6e1f769a73253bcbcb032ef5ce3da354d28385 100644
--- a/Doc/Tdoc/projects.xml
+++ b/Doc/Tdoc/projects.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<chapter version="5.1" xml:id="tdoc_chap_projects"
+<chapter annotations="slide" version="5.1" xml:id="tdoc_chap_projects"
          xmlns="http://docbook.org/ns/docbook"
          xmlns:xlink="http://www.w3.org/1999/xlink"
          xmlns:xila="http://www.w3.org/2001/XInclude/local-attributes"