diff --git a/qapi/block.json b/qapi/block.json
index aad645c4a6..84022f12be 100644
--- a/qapi/block.json
+++ b/qapi/block.json
@@ -6,7 +6,7 @@
 { 'include': 'block-core.json' }
 
 ##
-# BiosAtaTranslation:
+# @BiosAtaTranslation:
 #
 # Policy that BIOS should use to interpret cylinder/head/sector
 # addresses.  Note that Bochs BIOS and SeaBIOS will not actually