diff --git a/src/devices/machine/ie15.cpp b/src/devices/machine/ie15.cpp
index 851c06e2872..802d92b6eff 100644
--- a/src/devices/machine/ie15.cpp
+++ b/src/devices/machine/ie15.cpp
@@ -458,8 +458,8 @@ WRITE16_MEMBER( ie15_device::kbd_put )
 
 void ie15_device::device_resolve_objects()
 {
-	//m_rs232_conn_dtr_handler.resolve_safe();
-	//m_rs232_conn_rts_handler.resolve_safe();
+	m_rs232_conn_dtr_handler.resolve_safe();
+	m_rs232_conn_rts_handler.resolve_safe();
 	m_rs232_conn_txd_handler.resolve_safe();
 }