diff --git a/tools/libxl/libxl_freebsd.c b/tools/libxl/libxl_freebsd.c
index 86adee7..4a37537 100644
--- a/tools/libxl/libxl_freebsd.c
+++ b/tools/libxl/libxl_freebsd.c
@@ -167,6 +167,7 @@ static int libxl__hotplug_disk(libxl__gc *gc, libxl__device *dev,
                                libxl__device_action action)
 {
     char *be_path = libxl__device_backend_path(gc, dev);
+    const char *type = libxl__device_kind_to_string(dev->backend_kind);
     char *script;
     int nr = 0, rc;

@@ -178,11 +179,16 @@ static int libxl__hotplug_disk(libxl__gc *gc, libxl__device *dev,
         goto error;
     }

-    const int arraysize = 4;
+    LOG(ERROR, "type: %s\n",type);
+    LOG(ERROR, "path: %s\n",GCSPRINTF("backend/%s/%u/%d", type, dev->domid, dev->devid));
+
+    const int arraysize = 6;
     GCNEW_ARRAY(*args, arraysize);
     (*args)[nr++] = script;
     (*args)[nr++] = be_path;
     (*args)[nr++] = (char *) libxl__device_action_to_string(action);
+    (*args)[nr++] = (char *) type;
+    (*args)[nr++] = GCSPRINTF("backend/%s/%u/%d", type, dev->domid, dev->devid);
     (*args)[nr++] = NULL;
     assert(nr == arraysize);