diff --git a/examples/server/public_simplechat/simplechat.html b/examples/server/public_simplechat/simplechat.html
index 1a645c7fd..f755e6157 100644
--- a/examples/server/public_simplechat/simplechat.html
+++ b/examples/server/public_simplechat/simplechat.html
@@ -9,6 +9,9 @@
             .heading {
                 background-color: lightgray;
             }
+            .role-system {
+                background-color: lightblue;
+            }
             .role-user {
                 background-color: lightgray;
             }