diff --git a/test/bats.bats b/test/bats.bats
index f6ec532..bef3ce9 100755
--- a/test/bats.bats
+++ b/test/bats.bats
@@ -112,9 +112,14 @@ fixtures bats
 }
 
 @test "test should not output DEBUG line if DEBUG is not set" {
+  export DEBUG=1
   run bats "$FIXTURE_ROOT/debug.bats"
   [ $status -eq 0 ]
-  [[ ! $(echo $output | grep DEBUG) ]]
+  # [[ ! $(echo $output | grep DEBUG) ]]
+  echo $output | {
+    run grep DEBUG
+    [[ $status -ne 0 ]]
+  }
 }
 
 @test "test should output DEBUG line if DEBUG is set" {