diff --git a/Documentation/DocBook/media/v4l/io.xml b/Documentation/DocBook/media/v4l/io.xml
index 09e8dcf5e9c4..2c4646d504c2 100644
--- a/Documentation/DocBook/media/v4l/io.xml
+++ b/Documentation/DocBook/media/v4l/io.xml
@@ -905,7 +905,7 @@ should set this to 0.</entry>
 	  </row>
 	  <row>
 	    <entry></entry>
-	    <entry>__unsigned long</entry>
+	    <entry>unsigned long</entry>
 	    <entry><structfield>userptr</structfield></entry>
 	    <entry>When the memory type in the containing &v4l2-buffer; is
 	      <constant>V4L2_MEMORY_USERPTR</constant>, this is a userspace