diff --git a/src/pages.go b/src/pages.go
index 433043c..d2e70f5 100644
--- a/src/pages.go
+++ b/src/pages.go
@@ -268,6 +268,7 @@ func postPage(w http.ResponseWriter, r *http.Request) error {
 
 func ServePages(w http.ResponseWriter, r *http.Request) {
 	log.Println("pages:", r.Method, r.Host, r.URL)
+	w.Header().Add("Server", "git-pages")
 	err := error(nil)
 	switch r.Method {
 	case http.MethodGet, http.MethodHead: