diff --git a/src/devices/machine/ncr5390.cpp b/src/devices/machine/ncr5390.cpp
index 2daaabe445b..9878198b03a 100644
--- a/src/devices/machine/ncr5390.cpp
+++ b/src/devices/machine/ncr5390.cpp
@@ -375,7 +375,7 @@ void ncr5390_device::step(bool timeout)
 	case DISC_SEL_ATN_SEND_BYTE:
 		if(c == CD_SELECT_ATN_STOP) {
 			seq = 1;
-			function_complete();
+			function_bus_complete();
 		} else {
 			command_length = derive_msg_size(fifo[0]);
 			state = DISC_SEL_WAIT_REQ;