diff --git a/google/cloud/aiplatform/datasets/tabular_dataset.py b/google/cloud/aiplatform/datasets/tabular_dataset.py
index 1fe23f5ee2..f9a9658d7e 100644
--- a/google/cloud/aiplatform/datasets/tabular_dataset.py
+++ b/google/cloud/aiplatform/datasets/tabular_dataset.py
@@ -150,7 +150,7 @@ def _retrieve_gcs_source_columns(
 
             while first_new_line_index == -1:
                 line += blob.download_as_bytes(
-                    start=start_index, end=start_index + increment
+                    start=start_index, end=start_index + increment - 1
                 ).decode("utf-8")
 
                 first_new_line_index = line.find("\n")