diff --git a/scripts/target/mame/mess.lua b/scripts/target/mame/mess.lua
index 24b0e40baf0..55230f0b9b8 100644
--- a/scripts/target/mame/mess.lua
+++ b/scripts/target/mame/mess.lua
@@ -716,7 +716,7 @@ MACHINES["TTL74123"] = true
 MACHINES["TTL74145"] = true
 MACHINES["TTL74148"] = true
 MACHINES["TTL74153"] = true
---MACHINES["TTL74157"] = true
+MACHINES["TTL74157"] = true
 MACHINES["TTL74161"] = true
 MACHINES["TTL74164"] = true
 MACHINES["TTL74175"] = true