diff --git a/Makefile b/Makefile
index 1b8b8c670b..949bdb19f4 100644
--- a/Makefile
+++ b/Makefile
@@ -793,7 +793,7 @@ setup: venv
 	$(MAKE) -C tools
 	$(PYTHON) tools/decompress_baserom.py $(VERSION)
 	$(PYTHON) tools/extract_baserom.py $(BASEROM_DIR)/baserom-decompressed.z64 $(EXTRACTED_DIR)/baserom -v $(VERSION)
-	$(PYTHON) -m tools.assets.extract $(EXTRACTED_DIR)/baserom $(EXTRACTED_DIR) -v $(VERSION) -j
+	$(PYTHON) -m tools.assets.extract $(EXTRACTED_DIR)/baserom $(EXTRACTED_DIR) -v $(VERSION) -j$(N_THREADS)
 	$(PYTHON) tools/extract_incbins.py $(EXTRACTED_DIR)/baserom $(EXTRACTED_DIR)/incbin -v $(VERSION)
 	$(PYTHON) tools/extract_text.py $(EXTRACTED_DIR)/baserom $(EXTRACTED_DIR)/text -v $(VERSION)
 	$(PYTHON) tools/extract_audio.py -o $(EXTRACTED_DIR) -v $(VERSION) --read-xml