diff --git a/pySim/esim/saip/__init__.py b/pySim/esim/saip/__init__.py
index 7c6a557c..f4ac3059 100644
--- a/pySim/esim/saip/__init__.py
+++ b/pySim/esim/saip/__init__.py
@@ -291,6 +291,10 @@ class File:
         dfName = fileDescriptor.get('dfName', None)
         if dfName:
             self.df_name = dfName
+        efFileSize = fileDescriptor.get('efFileSize', None)
+        if efFileSize:
+            self._file_size = self._decode_file_size(efFileSize)
+
         pefi = fileDescriptor.get('proprietaryEFInfo', {})
         securityAttributesReferenced = fileDescriptor.get('securityAttributesReferenced', None)
         if securityAttributesReferenced:
@@ -300,13 +304,11 @@ class File:
             fdb_dec = fd_dec['file_descriptor_byte']
             self.shareable = fdb_dec['shareable']
             if fdb_dec['file_type'] == 'working_ef':
-                efFileSize = fileDescriptor.get('efFileSize', None)
                 if fd_dec['num_of_rec']:
                     self.nb_rec = fd_dec['num_of_rec']
                 if fd_dec['record_len']:
                     self.rec_len = fd_dec['record_len']
                 if efFileSize:
-                    self._file_size = self._decode_file_size(efFileSize)
                     if self.rec_len and self.nb_rec == None:
                         # compute the number of records from file size and record length
                         self.nb_rec = self._file_size // self.rec_len