diff --git a/cd06/senior/loader.py b/cd06/senior/loader.py
index a84d1db..2c583df 100644
--- a/cd06/senior/loader.py
+++ b/cd06/senior/loader.py
@@ -132,6 +132,17 @@ def normalize(row, ppid_index):
             email = None
     row['email'] = email
 
+    # CP
+    cp = row['CP']
+    if cp == '0600':
+        cp = '06000'
+    if re.match(r'6\s\d\d\d', cp):
+        cp = re.sub(r'\s', '', cp)
+    if re.match(r'6\d\d\d', cp):
+        cp = '0' + cp
+    if cp != row['CP']:
+        row['CP'] = cp
+
     # Archivé
     if row['Archivé'] == 'OUI':
         logger.warning(f'line {line} ppid {row["ppid"]} : Archivé==OUI')