diff --git a/Makefile b/Makefile
index 6991fd7..d52c2cf 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VENV = poetry run
-ESP_TOOL = $(VENV) esptool.py
+ESP_TOOL = $(VENV) esptool.py --port $(ESP_PORT)
 MPYCROSS = $(VENV) mpy-cross
-AMPY = $(VENV) ampy
+AMPY = $(VENV) ampy --port $(ESP_PORT)
 
 # Downloaded from https://micropython.org/download/ESP8266_GENERIC/
 MICRO_PYTHON_FIRMWARE = ESP8266_GENERIC-20240222-v1.22.2.bin
@@ -17,23 +17,23 @@ check: src/*.mpy
 	$(VENV) python3 -m py_compile src/*.py
 
 erase_flash:
-	$(ESP_TOOL) --port $(ESP_PORT) erase_flash
+	$(ESP_TOOL) erase_flash
 
 flash_esp: erase_flash
-	$(ESP_TOOL) --port $(ESP_PORT) --baud 460800 write_flash --flash_size=detect 0 $(MICRO_PYTHON_FIRMWARE)
+	$(ESP_TOOL) --baud 460800 write_flash --flash_size=detect 0 $(MICRO_PYTHON_FIRMWARE)
 
 install: check src/*.mpy
-	$(AMPY) --port $(ESP_PORT) put src/main.py
+	$(AMPY) put src/main.py
 	@for f in $(filter-out check,$?); do \
 		echo Uploading $$f; \
-		$(AMPY) --port $(ESP_PORT) put $$f; \
+		$(AMPY) put $$f; \
 	done
 
 uninstall:
-	@echo $(filter-out /boot.py,$(shell $(AMPY) --port $(ESP_PORT) ls))
-	@for f in $(filter-out /boot.py,$(shell $(AMPY) --port $(ESP_PORT) ls)); do \
+	@echo $(filter-out /boot.py,$(shell $(AMPY) ls))
+	@for f in $(filter-out /boot.py,$(shell $(AMPY) ls)); do \
 		echo Deleting $$f; \
-		$(AMPY) --port $(ESP_PORT) rm $$f; \
+		$(AMPY) rm $$f; \
 	done
 
 clean: