diff --git a/hw/block/fdc-internal.h b/hw/block/fdc-internal.h
index 036392e9fc..fef2bfbbf5 100644
--- a/hw/block/fdc-internal.h
+++ b/hw/block/fdc-internal.h
@@ -26,7 +26,6 @@
 #define HW_BLOCK_FDC_INTERNAL_H
 
 #include "exec/memory.h"
-#include "exec/ioport.h"
 #include "hw/block/block.h"
 #include "hw/block/fdc.h"
 #include "qapi/qapi-types-block.h"
@@ -140,7 +139,6 @@ struct FDCtrl {
     /* Timers state */
     uint8_t timer0;
     uint8_t timer1;
-    PortioList portio_list;
 };
 
 extern const FDFormat fd_formats[];
diff --git a/hw/block/fdc-isa.c b/hw/block/fdc-isa.c
index ad0921c7d3..2d8a98ce7d 100644
--- a/hw/block/fdc-isa.c
+++ b/hw/block/fdc-isa.c
@@ -42,6 +42,7 @@
 #include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "sysemu/sysemu.h"
+#include "exec/ioport.h"
 #include "qemu/log.h"
 #include "qemu/main-loop.h"
 #include "qemu/module.h"
@@ -60,6 +61,7 @@ struct FDCtrlISABus {
     uint32_t irq;
     uint32_t dma;
     struct FDCtrl state;
+    PortioList portio_list;
     int32_t bootindexA;
     int32_t bootindexB;
 };
@@ -91,7 +93,7 @@ static void isabus_fdc_realize(DeviceState *dev, Error **errp)
     FDCtrl *fdctrl = &isa->state;
     Error *err = NULL;
 
-    isa_register_portio_list(isadev, &fdctrl->portio_list,
+    isa_register_portio_list(isadev, &isa->portio_list,
                              isa->iobase, fdc_portio_list, fdctrl,
                              "fdc");