diff --git a/src/mame/mess.flt b/src/mame/mess.flt
index 9ed03f7a262..e8954f57cd4 100644
--- a/src/mame/mess.flt
+++ b/src/mame/mess.flt
@@ -736,6 +736,7 @@ pdt3100.cpp
 pecom.cpp
 pegasus.cpp
 pencil2.cpp
+pensebem.cpp
 pentagon.cpp
 peoplepc.cpp
 perq.cpp