diff --git a/python/obitools3/obidms/_obidms.pyx b/python/obitools3/obidms/_obidms.pyx
index 487d52a..c0786e6 100644
--- a/python/obitools3/obidms/_obidms.pyx
+++ b/python/obitools3/obidms/_obidms.pyx
@@ -619,7 +619,7 @@ cdef class OBIView_line :
                     value_b = str2bytes(value)
                 else :
                     value_b = value
-                if only_ATGC(value_b) :    # TODO detect IUPAC?
+                if only_ATGC(value_b) :    # TODO detect IUPAC
                     value_obitype = 'OBI_SEQ'
                 elif len(value) == 1 :
                     value_obitype = 'OBI_CHAR'
@@ -729,7 +729,7 @@ cdef class OBIDMS :
         # Check the type of the view to clone if there is one    # TODO make generic for future other view types
         if (view_to_clone is not None and \
             ((type(view_to_clone) == str and self.read_view_infos(view_to_clone)["view_type"] == bytes2str(VIEW_TYPE_NUC_SEQS)) or \
-             (view_to_clone.type == bytes2str(VIEW_TYPE_NUC_SEQS)))) or \
+             (type(view_to_clone) != str and view_to_clone.type == bytes2str(VIEW_TYPE_NUC_SEQS)))) or \
              (line_selection is not None and (line_selection._view.type == bytes2str(VIEW_TYPE_NUC_SEQS))) :
                 view_type = bytes2str(VIEW_TYPE_NUC_SEQS)
                 view_class = OBIView_NUC_SEQS