diff --git a/scripts/buildNinjaBinary.js b/scripts/buildNinjaBinary.js
index 2c21799850..156e26bfda 100755
--- a/scripts/buildNinjaBinary.js
+++ b/scripts/buildNinjaBinary.js
@@ -6,7 +6,7 @@ const path = require("path");
 
 const platform = process.platform;
 const ninjaDir = path.join(__dirname, "..", "ninja");
-const buildCommand = "python configure.py --bootstrap --verbose";
+const buildCommand = "python3 configure.py --bootstrap --verbose";
 
 if (platform === "win32") {
   // On Windows, the build uses the MSVC compiler which needs to be on the path.