diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 7c48ba30e0..126b6c11df 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -39,6 +39,7 @@
 #include "hw/pci/pci_ids.h"
 #include "hw/usb.h"
 #include "net/net.h"
+#include "hw/ide/isa.h"
 #include "hw/ide/pci.h"
 #include "hw/ide/piix.h"
 #include "hw/irq.h"
diff --git a/hw/ide/isa.c b/hw/ide/isa.c
index 8bedbd13f1..5c3e83a0fc 100644
--- a/hw/ide/isa.c
+++ b/hw/ide/isa.c
@@ -31,22 +31,20 @@
 #include "qemu/module.h"
 #include "sysemu/dma.h"
 
+#include "hw/ide/isa.h"
 #include "hw/ide/internal.h"
 #include "qom/object.h"
 
 /***********************************************************/
 /* ISA IDE definitions */
 
-#define TYPE_ISA_IDE "isa-ide"
-OBJECT_DECLARE_SIMPLE_TYPE(ISAIDEState, ISA_IDE)
-
 struct ISAIDEState {
     ISADevice parent_obj;
 
     IDEBus    bus;
     uint32_t  iobase;
     uint32_t  iobase2;
-    uint32_t  isairq;
+    uint32_t  irqnum;
     qemu_irq  irq;
 };
 
@@ -75,13 +73,13 @@ static void isa_ide_realizefn(DeviceState *dev, Error **errp)
 
     ide_bus_init(&s->bus, sizeof(s->bus), dev, 0, 2);
     ide_init_ioport(&s->bus, isadev, s->iobase, s->iobase2);
-    s->irq = isa_get_irq(isadev, s->isairq);
+    s->irq = isa_get_irq(isadev, s->irqnum);
     ide_init2(&s->bus, s->irq);
     vmstate_register(VMSTATE_IF(dev), 0, &vmstate_ide_isa, s);
     ide_register_restart_cb(&s->bus);
 }
 
-ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int isairq,
+ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int irqnum,
                         DriveInfo *hd0, DriveInfo *hd1)
 {
     DeviceState *dev;
@@ -92,7 +90,7 @@ ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int isairq,
     dev = DEVICE(isadev);
     qdev_prop_set_uint32(dev, "iobase",  iobase);
     qdev_prop_set_uint32(dev, "iobase2", iobase2);
-    qdev_prop_set_uint32(dev, "irq",     isairq);
+    qdev_prop_set_uint32(dev, "irq",     irqnum);
     isa_realize_and_unref(isadev, bus, &error_fatal);
 
     s = ISA_IDE(dev);
@@ -108,7 +106,7 @@ ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int isairq,
 static Property isa_ide_properties[] = {
     DEFINE_PROP_UINT32("iobase",  ISAIDEState, iobase,  0x1f0),
     DEFINE_PROP_UINT32("iobase2", ISAIDEState, iobase2, 0x3f6),
-    DEFINE_PROP_UINT32("irq",    ISAIDEState, isairq,  14),
+    DEFINE_PROP_UINT32("irq",     ISAIDEState, irqnum,  14),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/include/hw/ide.h b/include/hw/ide.h
index 5f8c36b2aa..24a7aa2925 100644
--- a/include/hw/ide.h
+++ b/include/hw/ide.h
@@ -1,13 +1,8 @@
 #ifndef HW_IDE_H
 #define HW_IDE_H
 
-#include "hw/isa/isa.h"
 #include "exec/memory.h"
 
-/* ide-isa.c */
-ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int isairq,
-                        DriveInfo *hd0, DriveInfo *hd1);
-
 int ide_get_geometry(BusState *bus, int unit,
                      int16_t *cyls, int8_t *heads, int8_t *secs);
 int ide_get_bios_chs_trans(BusState *bus, int unit);
diff --git a/include/hw/ide/isa.h b/include/hw/ide/isa.h
new file mode 100644
index 0000000000..1cd0ff1fa6
--- /dev/null
+++ b/include/hw/ide/isa.h
@@ -0,0 +1,20 @@
+/*
+ * QEMU IDE Emulation: ISA Bus support.
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2006 Openedhand Ltd.
+ *
+ * SPDX-License-Identifier: MIT
+ */
+#ifndef HW_IDE_ISA_H
+#define HW_IDE_ISA_H
+
+#include "qom/object.h"
+
+#define TYPE_ISA_IDE "isa-ide"
+OBJECT_DECLARE_SIMPLE_TYPE(ISAIDEState, ISA_IDE)
+
+ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int irqnum,
+                        DriveInfo *hd0, DriveInfo *hd1);
+
+#endif