diff --git a/docs/interop/qcow2.txt b/docs/interop/qcow2.txt
index e7f036c286..2c4618375a 100644
--- a/docs/interop/qcow2.txt
+++ b/docs/interop/qcow2.txt
@@ -226,6 +226,7 @@ version 2.
                     <https://www.zlib.net/> in QEMU. However, clusters with the
                     deflate compression type do not have zlib headers.
 
+        105 - 111:  Padding, contents defined below.
 
 === Header padding ===