diff --git a/hours/importer/base.py b/hours/importer/base.py
index 265f24ca..c2413148 100644
--- a/hours/importer/base.py
+++ b/hours/importer/base.py
@@ -108,6 +108,7 @@ def clean_text(text: str, strip_newlines: bool = False) -> str:
         text = text.replace("\u0000", " ")
         if strip_newlines:
             text = text.replace("\r", "").replace("\n", " ")
+        # TODO check this, re.U seems to be erroneously used as count
         # remove consecutive whitespaces
         return re.sub(r"\s\s+", " ", text, re.U).strip()  # noqa: B034