diff --git a/webif/html/diag/mux.jim b/webif/html/diag/mux.jim
index f54436a..c41009a 100755
--- a/webif/html/diag/mux.jim
+++ b/webif/html/diag/mux.jim
@@ -136,6 +136,7 @@ foreach tw [$db query {
 }
 
 puts "</table>"
+puts "<div class=blood>Signal strength and quality figures are as at the last retune.</div>"
 
 puts {
 <script type=text/javascript>