diff --git a/build/commands/scripts/commands.js b/build/commands/scripts/commands.js
index e722d2e9068..0b549116119 100644
--- a/build/commands/scripts/commands.js
+++ b/build/commands/scripts/commands.js
@@ -414,6 +414,12 @@ program
     'platform to use for ios simulator',
     'iPhone 17',
   )
+  .option(
+    '--ninja <opt>',
+    'Additional Ninja command-line options, in the form <key>:<value>',
+    collect,
+    [],
+  )
   .option(
     '--ios_simulator_version <simulator_version>',
     'ios version for simulator',