diff --git a/owrx/controllers/settings.py b/owrx/controllers/settings.py
index 56ff1e4..c6004cb 100644
--- a/owrx/controllers/settings.py
+++ b/owrx/controllers/settings.py
@@ -114,10 +114,14 @@ class GeneralSettingsController(AdminController):
             AvatarInput(
                 "receiver_avatar",
                 "Receiver Avatar",
+                infotext="For performance reasons, images are cached. "
+                + "It can take a few hours until they appear on the site.",
             ),
             TopPhotoInput(
                 "receiver_top_photo",
                 "Receiver Panorama",
+                infotext="For performance reasons, images are cached. "
+                + "It can take a few hours until they appear on the site.",
             ),
         ),
         Section(