diff --git a/src/port_pc98_cpu.c b/src/port_pc98_cpu.c
index 107116e72..6744d74d1 100644
--- a/src/port_pc98_cpu.c
+++ b/src/port_pc98_cpu.c
@@ -172,7 +172,6 @@ port_pc98_cpu_init(const device_t *info)
 
     timer_add(&dev->pulse_timer, port_pc98_cpu_pulse, dev, 0);
 
-    dev->reg    = 0;
     mem_a20_alt = 0;
     mem_a20_recalc();