diff --git a/xml/relaxng/src/resources/patches/0004_ping.patch b/xml/relaxng/src/resources/patches/0004_ping.patch
index 6f825ac4a2e0..4e47a934c7d6 100644
--- a/xml/relaxng/src/resources/patches/0004_ping.patch
+++ b/xml/relaxng/src/resources/patches/0004_ping.patch
@@ -7,7 +7,7 @@
 -  shared-hyperlink.attrs.ping =
 -    attribute ping {
 -      common.data.uris
--    } & v5only & nonW3C
+-    } & v5only
  
  ## Emphatic Stress: <em>