diff --git a/netforce_clinic/migrations/reset_hdcase_number.py b/netforce_clinic/migrations/reset_hdcase_number.py
index 0ff6366..971e832 100644
--- a/netforce_clinic/migrations/reset_hdcase_number.py
+++ b/netforce_clinic/migrations/reset_hdcase_number.py
@@ -18,9 +18,9 @@ class Migration(migration.Migration):
         ]
         for hdcase in get_model("clinic.hd.case").search_browse(dom):
             nums=hdcase.number.split("-")
-            if len(nums)==3 and len(nums[2])==6:
-                run=nums[2]
-                number='-'.join([nums[0],nums[1]+run[0:2],run[2:]])
+            if len(nums)==3 and len(nums[1])==4:
+                run=nums[1]
+                number='-'.join([nums[0],run[0:2],run[2:],nums[2]])
                 print('XXX', hdcase.number, ' --> ', number)
                 hdcase.write({
                     'number': number,