diff --git a/app/scodoc/sco_photos.py b/app/scodoc/sco_photos.py
index b16335ae..c0f3cbd8 100644
--- a/app/scodoc/sco_photos.py
+++ b/app/scodoc/sco_photos.py
@@ -128,7 +128,7 @@ def etud_photo_url(etud: dict, size="small", fast=False) -> str:
                 if scu.CONFIG.PUBLISH_PORTAL_PHOTO_URL:
                     photo_url = ext_url
                 else:
-                    photo_url = UNKNOWN_IMAGE_URL
+                    photo_url = scu.ScoURL() + "/" + UNKNOWN_IMAGE_URL
     return photo_url