diff --git a/fftool/main.py b/fftool/main.py
index 75ccc03..88c894b 100755
--- a/fftool/main.py
+++ b/fftool/main.py
@@ -39,7 +39,7 @@ def main():
             options.profile,
             application=options.app,
             test_type=options.test_type,
-            env=options.env
+            env=options.prefs
         )
 
     # LAUNCH