diff --git a/cmd/pkgserver/ui.go b/cmd/pkgserver/ui.go
index 4a09edf0..49871c8b 100644
--- a/cmd/pkgserver/ui.go
+++ b/cmd/pkgserver/ui.go
@@ -19,7 +19,7 @@ func serveStaticContent(w http.ResponseWriter, r *http.Request) {
 		if len(darkTheme) > 0 && darkTheme[0].Value == "true" {
 			http.ServeFileFS(w, r, content, "ui/static/dark.css")
 		} else {
-			http.ServeFileFS(w, r, content, "ui/static/light.css")
+			http.ServeFileFS(w, r, content, "ui/static/dark.css")
 		}
 	case "/favicon.ico":
 		http.ServeFileFS(w, r, content, "ui/static/favicon.ico")