diff --git a/eufy.py b/eufy.py
index c6e64bc..8b51231 100755
--- a/eufy.py
+++ b/eufy.py
@@ -22,7 +22,7 @@ def ir_termux(pulses):
 default_driver = ir_debug
 
 if 'ANDROID_ROOT' in os.environ:
-    if 'com.termux' in os.get('SHELL', ''):
+    if 'com.termux' in os.environ.get('SHELL', ''):
         default_driver = ir_termux
     else:
         try: