diff --git a/src/mame/drivers/cmmb.cpp b/src/mame/drivers/cmmb.cpp
index 8b8a811fe07..07281110b3c 100644
--- a/src/mame/drivers/cmmb.cpp
+++ b/src/mame/drivers/cmmb.cpp
@@ -458,4 +458,14 @@ ROM_START( cmmb162 )
 	ROM_REGION( 0x1000, "gfx", ROMREGION_ERASE00 )
 ROM_END
 
+ROM_START( cmmb103 )
+	ROM_REGION( 0x50000, "maincpu", 0 )
+	ROM_LOAD( "cmm103.u2",    0x10000, 0x40000, CRC(5e925b6b) SHA1(ac675d65bf5cdbd8b0456bb23e46bb00dcae916a) )
+	ROM_COPY( "maincpu",      0x18000, 0x08000, 0x08000 )
+	//ROM_FILL( 0x1c124, 2, 0xea ) // temporary patch to avoid waiting on IRQs
+
+	ROM_REGION( 0x1000, "gfx", ROMREGION_ERASE00 )
+ROM_END
+
+GAME( 2001, cmmb103, 0, cmmb, cmmb, cmmb_state, empty_init, ROT270, "Cosmodog / Team Play (Licensed from Infogrames via Midway Games West)", "Centipede / Millipede / Missile Command (rev 1.03)", MACHINE_NO_SOUND|MACHINE_NOT_WORKING )
 GAME( 2002, cmmb162, 0, cmmb, cmmb, cmmb_state, empty_init, ROT270, "Cosmodog / Team Play (Licensed from Infogrames via Midway Games West)", "Centipede / Millipede / Missile Command / Let's Go Bowling (rev 1.62)", MACHINE_NO_SOUND|MACHINE_NOT_WORKING )
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 1271006ba6a..08e4f54515e 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -9969,6 +9969,7 @@ cmi2x                           // Fairlight CMI IIx
 
 @source:cmmb.cpp
 cmmb162                         //
+cmmb103
 
 @source:cms.cpp
 cms6502                         // CMS 6502 Development System
@@ -31229,7 +31230,7 @@ pbactiont                       // (c) 1985 Tehkan (Tecfri license)
 ataripc1                        // Atari PC1
 ataripc3                        // Atari PC3
 bw230                           // 1985 Bondwell (CGA)
-cadd810							// CompuAdd 810
+cadd810                         // CompuAdd 810
 compc1                          // 1984 Commodore PC-1
 comport                         // Compaq Portable
 dgone                           // 1984 Data General/One