diff --git a/pandora/dataset.py b/pandora/dataset.py
index 98c4da4..e74c883 100644
--- a/pandora/dataset.py
+++ b/pandora/dataset.py
@@ -445,7 +445,7 @@ def get_sample_info(self) -> pd.Series:
 
         sample_ids = []
         for sample in self._ind_file.open():
-            sample_id, _, _ = sample.split()
+            sample_id, _, _ = re.split(r"\s+", sample.strip(), maxsplit=2)
             sample_ids.append(sample_id.strip())
 
         return pd.Series(sample_ids)