diff --git a/src/devices/bus/spc1000/fdd.cpp b/src/devices/bus/spc1000/fdd.cpp
index 203ff1059bd..dd91cbe898c 100644
--- a/src/devices/bus/spc1000/fdd.cpp
+++ b/src/devices/bus/spc1000/fdd.cpp
@@ -84,8 +84,8 @@ void spc1000_fdd_exp_device::device_add_mconfig(machine_config &config)
 {
 	// sub CPU (5 inch floppy drive)
 	Z80(config, m_cpu, XTAL(4'000'000));
-	m_cpu->set_addrmap(AS_PROGRAM, spc1000_fdd_exp_device::sd725_mem);
-	m_cpu->set_addrmap(AS_IO, spc1000_fdd_exp_device::sd725_io);
+	m_cpu->set_addrmap(AS_PROGRAM, &spc1000_fdd_exp_device::sd725_mem);
+	m_cpu->set_addrmap(AS_IO, &spc1000_fdd_exp_device::sd725_io);
 
 	I8255(config, m_ppi);
 	m_ppi->in_pa_callback().set(m_ppi, FUNC(i8255_device::pb_r));
diff --git a/src/devices/machine/pdc.cpp b/src/devices/machine/pdc.cpp
index 0c21778fc14..10dc9fd0619 100644
--- a/src/devices/machine/pdc.cpp
+++ b/src/devices/machine/pdc.cpp
@@ -259,8 +259,8 @@ void pdc_device::device_add_mconfig(machine_config &config)
 {
 	/* CPU - Zilog Z0840006PSC */
 	Z80(config, m_pdccpu, XTAL(10'000'000) / 2);
-	m_pdccpu->set_addrmap(AS_PROGRAM, pdc_device::pdc_mem);
-	m_pdccpu->set_addrmap(AS_IO, pdc_device::pdc_io);
+	m_pdccpu->set_addrmap(AS_PROGRAM, &pdc_device::pdc_mem);
+	m_pdccpu->set_addrmap(AS_IO, &pdc_device::pdc_io);
 	//MCFG_QUANTUM_PERFECT_CPU(M6502_TAG)
 
 	/* Floppy Disk Controller - uPD765a - NEC D765AC-2 */