diff --git a/bwpass.py b/bwpass.py
index 829dfdb..d88a7d0 100644
--- a/bwpass.py
+++ b/bwpass.py
@@ -8,7 +8,7 @@ from bundlewrap.utils.text import bold, yellow
 from bundlewrap.utils.ui import io
 
 PASSWORD_STORE_DIR = expanduser(environ.get('BW_PASS_DIR', '~/.password-store'))
-DUMMY_MODE = environ.get('PW_PASS_DUMMY_MODE', '0') == '1'
+DUMMY_MODE = environ.get('BW_PASS_DUMMY_MODE', '0') == '1'
 
 cache = {}