diff --git a/phpBB/styles/prosilver/template/overall_header.html b/phpBB/styles/prosilver/template/overall_header.html
index 397ccde28f..62a90ecfc2 100644
--- a/phpBB/styles/prosilver/template/overall_header.html
+++ b/phpBB/styles/prosilver/template/overall_header.html
@@ -62,7 +62,7 @@
 	<link href="{T_ASSETS_PATH}/cookieconsent/cookieconsent.min.css?assets_version={T_ASSETS_VERSION}" rel="stylesheet">
 <!-- ENDIF -->
 
-<link rel="manifest" href="{{ U_MANIFEST }}">
+<link rel="manifest" href="{{ U_MANIFEST }}" crossorigin="">
 
 <!-- EVENT overall_header_head_append -->