diff --git a/app/scodoc/sco_groups.py b/app/scodoc/sco_groups.py
index 668bbbeb..7a31b995 100644
--- a/app/scodoc/sco_groups.py
+++ b/app/scodoc/sco_groups.py
@@ -791,7 +791,7 @@ def partition_create(
     if not sco_permissions_check.can_change_groups(formsemestre_id):
         raise AccessDenied("Vous n'avez pas le droit d'effectuer cette opération !")
     if partition_name:
-        partition_name = partition_name.strip()
+        partition_name = str(partition_name).strip()
     if default:
         partition_name = None
     if not partition_name and not default:
@@ -1106,7 +1106,7 @@ def partition_rename(partition_id):
 
 def partition_set_name(partition_id, partition_name, redirect=1):
     """Set partition name"""
-    partition_name = partition_name.strip()
+    partition_name = str(partition_name).strip()
     if not partition_name:
         raise ValueError("partition name must be non empty")
     partition = get_partition(partition_id)
@@ -1347,6 +1347,7 @@ def create_etapes_partition(formsemestre_id, partition_name="apo_etapes"):
     """
     from app.scodoc import sco_formsemestre_inscriptions
 
+    partition_name = str(partition_name)
     log("create_etapes_partition(%s)" % formsemestre_id)
     ins = sco_formsemestre_inscriptions.do_formsemestre_inscription_list(
         args={"formsemestre_id": formsemestre_id}