diff --git a/app/scodoc/sco_synchro_etuds.py b/app/scodoc/sco_synchro_etuds.py
index da7cc3bc30..6087ef8734 100644
--- a/app/scodoc/sco_synchro_etuds.py
+++ b/app/scodoc/sco_synchro_etuds.py
@@ -515,7 +515,7 @@ def list_all(etudsapo_set):
         "SELECT "
         + EKEY_SCO
         + """, id AS etudid
-        FROM identite WHERE dept_id=%(dept_id)
+        FROM identite WHERE dept_id=%(dept_id)s
         """,
         {"dept_id", g.scodoc_dept_id},
     )