diff --git a/config.go b/config.go
index bb2a768..ff877d6 100644
--- a/config.go
+++ b/config.go
@@ -152,6 +152,8 @@ func readconfig(configPath string) error {
 
 	config.fcgiPools = make(map[string]gofast.ConnFactory)
 	for hostname, host := range config.Hosts {
+		hostname = strings.ToLower(hostname)
+
 		if defaultHost != nil {
 			if host.Cert == "" {
 				host.Cert = defaultHost.Cert
diff --git a/server.go b/server.go
index 4025483..e1ab0f0 100644
--- a/server.go
+++ b/server.go
@@ -389,6 +389,10 @@ func handleConn(c *tls.Conn) {
 		return
 	}
 
+	if request.Scheme == "gemini" {
+		request.Host = strings.ToLower(request.Host)
+	}
+
 	status, size, logPath = handleRequest(c, request, requestData)
 }