diff --git a/vmstate.h b/vmstate.h
index 623af0a..af10596 100644
--- a/vmstate.h
+++ b/vmstate.h
@@ -56,9 +56,6 @@ int register_savevm_live(DeviceState *dev,
                          void *opaque);
 
 void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque);
-void register_device_unmigratable(DeviceState *dev, const char *idstr,
-                                                                void *opaque);
-
 
 typedef struct VMStateInfo VMStateInfo;
 typedef struct VMStateDescription VMStateDescription;