diff --git a/_scripts/build.js b/_scripts/build.js
index 34a48748..80014c30 100644
--- a/_scripts/build.js
+++ b/_scripts/build.js
@@ -20,7 +20,7 @@ if (platform == 'darwin') {
     arch = Arch.arm64
   }
 
-  if (args[3] === 'arm32') {
+  if (args[2] === 'arm32') {
     arch = Arch.armv7l
   }