diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c
index 22c2d91e39..ee586e7d6c 100644
--- a/hw/scsi/esp.c
+++ b/hw/scsi/esp.c
@@ -592,19 +592,6 @@ const VMStateDescription vmstate_esp = {
     }
 };
 
-#define TYPE_ESP "esp"
-#define ESP_STATE(obj) OBJECT_CHECK(SysBusESPState, (obj), TYPE_ESP)
-
-typedef struct {
-    /*< private >*/
-    SysBusDevice parent_obj;
-    /*< public >*/
-
-    MemoryRegion iomem;
-    uint32_t it_shift;
-    ESPState esp;
-} SysBusESPState;
-
 static void sysbus_esp_mem_write(void *opaque, hwaddr addr,
                                  uint64_t val, unsigned int size)
 {
diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h
index d2c48869e1..3b160f858c 100644
--- a/include/hw/scsi/esp.h
+++ b/include/hw/scsi/esp.h
@@ -2,6 +2,7 @@
 #define QEMU_HW_ESP_H
 
 #include "hw/scsi/scsi.h"
+#include "hw/sysbus.h"
 
 /* esp.c */
 #define ESP_MAX_DEVS 7
@@ -52,6 +53,19 @@ struct ESPState {
     void (*dma_cb)(ESPState *s);
 };
 
+#define TYPE_ESP "esp"
+#define ESP_STATE(obj) OBJECT_CHECK(SysBusESPState, (obj), TYPE_ESP)
+
+typedef struct {
+    /*< private >*/
+    SysBusDevice parent_obj;
+    /*< public >*/
+
+    MemoryRegion iomem;
+    uint32_t it_shift;
+    ESPState esp;
+} SysBusESPState;
+
 #define ESP_TCLO   0x0
 #define ESP_TCMID  0x1
 #define ESP_FIFO   0x2