diff --git a/hw/mem/nvdimm.c b/hw/mem/nvdimm.c
index 6fefd650..375f9a5 100644
--- a/hw/mem/nvdimm.c
+++ b/hw/mem/nvdimm.c
@@ -30,6 +30,7 @@
 #include "hw/mem/nvdimm.h"
 #include "hw/qdev-properties.h"
 #include "hw/mem/memory-device.h"
+#include "sysemu/hostmem.h"
 
 static void nvdimm_get_label_size(Object *obj, Visitor *v, const char *name,
                                   void *opaque, Error **errp)
diff --git a/hw/virtio/virtio-pmem.c b/hw/virtio/virtio-pmem.c
index ff1a2dd..c0c9395 100644
--- a/hw/virtio/virtio-pmem.c
+++ b/hw/virtio/virtio-pmem.c
@@ -21,6 +21,7 @@
 #include "hw/virtio/virtio-access.h"
 #include "standard-headers/linux/virtio_ids.h"
 #include "standard-headers/linux/virtio_pmem.h"
+#include "sysemu/hostmem.h"
 #include "block/aio.h"
 #include "block/thread-pool.h"
 
diff --git a/include/hw/mem/pc-dimm.h b/include/hw/mem/pc-dimm.h
index 47b246f..289edc0 100644
--- a/include/hw/mem/pc-dimm.h
+++ b/include/hw/mem/pc-dimm.h
@@ -17,7 +17,6 @@
 #define QEMU_PC_DIMM_H
 
 #include "exec/memory.h"
-#include "sysemu/hostmem.h"
 #include "hw/qdev-core.h"
 
 #define TYPE_PC_DIMM "pc-dimm"
diff --git a/include/hw/virtio/virtio-pmem.h b/include/hw/virtio/virtio-pmem.h
index 8bf2ae7..33f1999 100644
--- a/include/hw/virtio/virtio-pmem.h
+++ b/include/hw/virtio/virtio-pmem.h
@@ -16,7 +16,6 @@
 
 #include "hw/virtio/virtio.h"
 #include "qapi/qapi-types-misc.h"
-#include "sysemu/hostmem.h"
 
 #define TYPE_VIRTIO_PMEM "virtio-pmem"
 
diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
index a95ad6a..7fe5973 100644
--- a/include/qemu/typedefs.h
+++ b/include/qemu/typedefs.h
@@ -49,6 +49,7 @@
 typedef struct FWCfgIoState FWCfgIoState;
 typedef struct FWCfgMemState FWCfgMemState;
 typedef struct FWCfgState FWCfgState;
+typedef struct HostMemoryBackend HostMemoryBackend;
 typedef struct HVFX86EmulatorState HVFX86EmulatorState;
 typedef struct I2CBus I2CBus;
 typedef struct I2SCodec I2SCodec;
diff --git a/include/sysemu/hostmem.h b/include/sysemu/hostmem.h
index 92fa0e4..afeb5db 100644
--- a/include/sysemu/hostmem.h
+++ b/include/sysemu/hostmem.h
@@ -27,7 +27,6 @@
 #define MEMORY_BACKEND_CLASS(klass) \
     OBJECT_CLASS_CHECK(HostMemoryBackendClass, (klass), TYPE_MEMORY_BACKEND)
 
-typedef struct HostMemoryBackend HostMemoryBackend;
 typedef struct HostMemoryBackendClass HostMemoryBackendClass;
 
 /**