diff --git a/entrypoint.sh b/entrypoint.sh
index 23d21dc..cb5d998 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -41,9 +41,9 @@ with connection.cursor() as cursor:
 fi
 
 if [ "$should_load_fixture" = "1" ]; then
-  TMP_DUMP="$(mktemp)"
+  TMP_DUMP="$(mktemp /tmp/visione-fixture.XXXXXX.json)"
   python /app/scripts/rewrite_dumps.py "$DUMP_SRC" "$TMP_DUMP"
-  python manage.py loaddata "$TMP_DUMP"
+  python manage.py loaddata --format=json "$TMP_DUMP"
   rm -f "$TMP_DUMP"
 fi