diff --git a/src/data/mime_db/image/avif b/src/data/mime_db/image/avif
index a6b78c8088..8025b20e5a 100644
--- a/src/data/mime_db/image/avif
+++ b/src/data/mime_db/image/avif
@@ -3,7 +3,7 @@ resource(0, "BEOS:TYPE") #'MIMS' "application/x-vnd.Be-meta-mime";
 
 resource(1, "META:TYPE") "image/avif";
 
-resource(2, "META:SNIFF_RULE") "0.50 \(\"\\000\\000\\000 ftypavif\"\)";
+resource(2, "META:SNIFF_RULE") "0.50 [4]\(\"ftypavif\"\)";
 
 resource(3, "META:S:DESC") #'MSDC' "AV1 Image File Format";