diff --git a/app/models/raw_sql_init.py b/app/models/raw_sql_init.py
index 0e57c3aee..54f01cf9f 100644
--- a/app/models/raw_sql_init.py
+++ b/app/models/raw_sql_init.py
@@ -35,6 +35,18 @@ BEGIN
     END LOOP;
 END;
 $$ LANGUAGE plpgsql;
+
+-- Fonction pour anonymisation:
+-- inspirée par https://www.simononsoftware.com/random-string-in-postgresql/
+CREATE FUNCTION random_text_md5( integer ) returns text
+    LANGUAGE SQL
+    AS $$
+    select upper( substring( (SELECT string_agg(md5(random()::TEXT), '')
+    FROM generate_series(
+        1,
+        CEIL($1 / 32.)::integer)
+    ), 1, $1) );
+    $$;
     """
     )
     db.session.commit()
diff --git a/app/scodoc/sco_dump_db.py b/app/scodoc/sco_dump_db.py
index 529afca01..4f793d5fa 100644
--- a/app/scodoc/sco_dump_db.py
+++ b/app/scodoc/sco_dump_db.py
@@ -205,7 +205,9 @@ def _drop_ano_db(ano_db_name):
     """drop temp database if it exists"""
     existing_databases = [
         s.split("|")[0].strip()
-        for s in subprocess.check_output(["psql", "-l"]).split("\n")[3:]
+        for s in subprocess.check_output(["psql", "-l"])
+        .decode(scu.SCO_ENCODING)
+        .split("\n")[3:]
     ]
     if ano_db_name not in existing_databases:
         log("_drop_ano_db: no temp db, nothing to drop")