fix python variable

test/test.py

diff --git a/test/test.py b/test/test.py
index 5e27cf9..9b9b596 100755
--- a/test/test.py
+++ b/test/test.py
@@ -10,7 +10,7 @@
 
 WINDOWS = sys.platform.startswith('win')
 MACOS = sys.platform == 'darwin'
-MAC_ARM64 = MACOS and platform.machine() == "arm64"
+MACOS_ARM64 = MACOS and platform.machine() == "arm64"
 
 emconfig = os.path.abspath('.emscripten')
 assert os.path.exists(emconfig)