diff --git a/src/mess/drivers/ibmpc.c b/src/mess/drivers/ibmpc.c
index b476b6b34d6..c787bcbf51b 100644
--- a/src/mess/drivers/ibmpc.c
+++ b/src/mess/drivers/ibmpc.c
@@ -323,6 +323,7 @@ static MACHINE_CONFIG_START( ibm5150, ibmpc_state )
 
 	/* software lists */
 	MCFG_SOFTWARE_LIST_ADD("disk_list","ibm5150")
+	MCFG_SOFTWARE_LIST_ADD("cass_list","ibm5150_cass")
 MACHINE_CONFIG_END