diff --git a/reference/rsusi.txt b/reference/rsusi.txt
index 4150a0c866..94adddce9a 100644
--- a/reference/rsusi.txt
+++ b/reference/rsusi.txt
@@ -124,6 +124,7 @@ sreams         ++            none  none        yes
 strings                      none  none        yes
 swf                          none  yes         yes
 sybase         ~             yes   yes         none
+tidy                         yes   yes         yes
 tokenizer      ~             yes   yes         none
 uodbc                        yes   ***         yes
 url            ~             none  none        none