diff --git a/main.py b/main.py
index 83967f7..9cc2639 100755
--- a/main.py
+++ b/main.py
@@ -120,6 +120,7 @@
       return 1
 
     copts, cargs = cmd.OptionParser.parse_args(argv)
+    copts = cmd.ReadEnvironmentOptions(copts)
 
     if not gopts.no_pager and not isinstance(cmd, InteractiveCommand):
       config = cmd.manifest.globalConfig