diff --git a/esphome/components/esp32/post_build.py.script b/esphome/components/esp32/post_build.py.script
index c99521423..e29821d7e 100644
--- a/esphome/components/esp32/post_build.py.script
+++ b/esphome/components/esp32/post_build.py.script
@@ -88,8 +88,6 @@ def merge_factory_bin(source, target, env):
     output_path = firmware_path.with_suffix(".factory.bin")
     python_exe = f'"{env.subst("$PYTHONEXE")}"'
     cmd = [
-        python_exe,
-        "-m",
         "esptool",
         "--chip",
         chip,