diff --git a/scripts/target/mame/arcade.lua b/scripts/target/mame/arcade.lua
index 70773a35f4b..6fd132e28e9 100644
--- a/scripts/target/mame/arcade.lua
+++ b/scripts/target/mame/arcade.lua
@@ -424,7 +424,7 @@ MACHINES["BANKDEV"] = true
 --MACHINES["BIM68153"] = true
 MACHINES["CDP1852"] = true
 MACHINES["CDP1871"] = true
---MACHINES["CHESSMACHINE"] = true
+MACHINES["CHESSMACHINE"] = true
 MACHINES["CMOS40105"] = true
 MACHINES["CDU76S"] = true
 MACHINES["COM8116"] = true