diff --git a/test/exec.bats b/test/exec.bats
index ff49912b..e603c3f8 100644
--- a/test/exec.bats
+++ b/test/exec.bats
@@ -34,6 +34,7 @@ EOF
   assert_success
   assert_output <<OUT
 --help
+--environment
 fab
 python
 OUT