diff --git a/internal/api/v1/favicon/favicon.go b/internal/api/v1/favicon/favicon.go
index 3e86d51..798d1db 100644
--- a/internal/api/v1/favicon/favicon.go
+++ b/internal/api/v1/favicon/favicon.go
@@ -69,7 +69,7 @@ func (res *fetchResult) OK() bool {
 
 func (res *fetchResult) ContentType() string {
 	if res.contentType == "" {
-		if bytes.HasPrefix(res.icon, []byte("<svg")) {
+		if bytes.HasPrefix(res.icon, []byte("<svg")) || bytes.HasPrefix(res.icon, []byte("<?xml")) {
 			return "image/svg+xml"
 		} else {
 			return "image/x-icon"