diff --git a/src/mame/mess.flt b/src/mame/mess.flt
index 668c05c1187..e3dddf83677 100644
--- a/src/mame/mess.flt
+++ b/src/mame/mess.flt
@@ -19,6 +19,7 @@ advision.cpp
 aim65.cpp
 aim65_40.cpp
 alesis.cpp
+alesis_qs.cpp
 alphasma.cpp
 alphatro.cpp
 altair.cpp