diff --git a/cbl_migrator/migrator.py b/cbl_migrator/migrator.py
index af47a86..d57e7be 100644
--- a/cbl_migrator/migrator.py
+++ b/cbl_migrator/migrator.py
@@ -53,10 +53,9 @@ def fill_table(o_eng_conn, d_eng_conn, table, chunk_size):
         )
         return True
     elif count != d_count and d_count != 0:
-        q = select(table).order_by(dpk.desc()).limit(1)
+        q = select(dpk).order_by(dpk.desc()).limit(1)
         with d_eng.connect() as conn:
-            res = conn.execute(q)
-            last_id = res.first().__getitem__(dpk.name)
+            last_id = conn.scalar(q)
         first_it = False
 
     # table has a composite pk (usualy a bad design choice).
diff --git a/setup.py b/setup.py
index 7d1094d..3bb83b2 100644
--- a/setup.py
+++ b/setup.py
@@ -3,9 +3,9 @@
 if __name__ == "__main__":
     setup(
         name="cbl_migrator",
-        version="0.3.5",
+        version="0.3.6",
         author="Eloy Félix",
-        author_email="eloyfelix@gmail.com",
+        author_email="efelix@ebi.ac.uk",
         description="Migrates Oracle dbs to PostgreSQL, MySQL and SQLite",
         url="https://github.com/chembl/cbl_migrator",
         license="MIT",