diff --git a/pdf_oralia/pages/charge.py b/pdf_oralia/pages/charge.py
index 8a0a796..b7b9f9c 100644
--- a/pdf_oralia/pages/charge.py
+++ b/pdf_oralia/pages/charge.py
@@ -30,7 +30,7 @@ def is_it(page_text):
 
 def get_lot(txt):
     """Return lot number from "RECAPITULATIF DES OPERATIONS" """
-    regex = r"[BSM](\d+)\s-"
+    regex = r"[BSM](\d+)(?=\s*-)"
     result = re.findall(regex, txt)
     if result:
         return "{:02d}".format(int(result[0]))