diff --git a/run_lualatex.py b/run_lualatex.py
index 7629e90..47186f2 100644
--- a/run_lualatex.py
+++ b/run_lualatex.py
@@ -53,6 +53,7 @@
 
 return_code = subprocess.call(
     args=[
+        "python3",
         latexrun_file,
         "--latex-args=-jobname=" + job_name,
         "--latex-cmd=lualatex",