diff --git a/docs/ns3_html_theme/theme.conf b/docs/ns3_html_theme/theme.conf
index ef74333..ecba9e9 100644
--- a/docs/ns3_html_theme/theme.conf
+++ b/docs/ns3_html_theme/theme.conf
@@ -13,8 +13,7 @@
 # logo = ns-3-inverted-notext-small.png
 logoalt = ns-3 Logo
 projectbrief = NS-3 based Named Data Networking (NDN) simulator
-projectnumber = ndnSIM
-
+projectnumber = ndnSIM: NDN, CCN, CCNx, content centric networks
 
 favicon = favicon.ico
 docstitle = Documentation