diff --git a/Makefile b/Makefile
index a3642fd..be3470f 100644
--- a/Makefile
+++ b/Makefile
@@ -32,7 +32,7 @@ pre-commit: fmt  ## Run all code quality checks
 
 .PHONY: tables
 tables: .venv  ## Generate data tables
-	$(MAKE) -C tpch-dbgen all
+	$(MAKE) -C tpch-dbgen dbgen
 	cd tpch-dbgen && ./dbgen -vf -s $(SCALE_FACTOR) && cd ..
 	mkdir -p "data/tables/scale-$(SCALE_FACTOR)"
 	mv tpch-dbgen/*.tbl data/tables/scale-$(SCALE_FACTOR)/
diff --git a/queries/polars/q8.py b/queries/polars/q8.py
index 19ba321..78a5ac9 100644
--- a/queries/polars/q8.py
+++ b/queries/polars/q8.py
@@ -8,7 +8,7 @@
 
 
 def q() -> None:
-    part_ds = utils.get_part_ds()
+    part = utils.get_part_ds()
     supplier = utils.get_supplier_ds()
     lineitem = utils.get_line_item_ds()
     orders = utils.get_orders_ds()
@@ -26,7 +26,7 @@ def q() -> None:
     n2 = nation.select("n_nationkey", "n_name")
 
     q_final = (
-        part_ds.join(lineitem, left_on="p_partkey", right_on="l_partkey")
+        part.join(lineitem, left_on="p_partkey", right_on="l_partkey")
         .join(supplier, left_on="l_suppkey", right_on="s_suppkey")
         .join(orders, left_on="l_orderkey", right_on="o_orderkey")
         .join(customer, left_on="o_custkey", right_on="c_custkey")