diff --git a/wadsrc/static/compatibility.txt b/wadsrc/static/compatibility.txt
index ca465c550..0aae0c23f 100644
--- a/wadsrc/static/compatibility.txt
+++ b/wadsrc/static/compatibility.txt
@@ -142,6 +142,7 @@ CA267398C9B3A8F79349D3394F8B2106 // map20
 
 62C723647C531A15F5647BA8B4818392 // riii.wad map11
 178605D81D8E8C4B78D91BC72C8A89ED // ht.wad map31
+F1EAD555B8AF5CB97D42BA632C0FA165 // cchest2.wad map19
 {
 	nombf21
 }