diff --git a/constants.py b/constants.py
index 1db816b..69833c9 100644
--- a/constants.py
+++ b/constants.py
@@ -1,5 +1,6 @@
 import appdirs
 import bpy
+import bpy.utils.previews
 import os
 from pathlib import Path
 from tempfile import gettempdir
diff --git a/preferences.py b/preferences.py
index 98bfffa..0de7be4 100644
--- a/preferences.py
+++ b/preferences.py
@@ -61,6 +61,7 @@ def load_trackers():
                 print(e)
 
 def load_tracker_prefs():
+    # FIXME Ça écrase les prefs à chaque quoi
     prefs = get_addon_prefs()
     tracker_prefs_file = os.getenv('TRACKER_PREFS')