diff --git a/tests/unit/10_ps-dockerfile.bats b/tests/unit/10_ps-dockerfile.bats
index cd7329c6f..29e9d39ee 100644
--- a/tests/unit/10_ps-dockerfile.bats
+++ b/tests/unit/10_ps-dockerfile.bats
@@ -72,8 +72,8 @@ teardown() {
 
 @test "(ps:scale) dockerfile non-existent process" {
   run bash -c "dokku --trace ps:scale $TEST_APP non-existent=2"
-  echo "output: "$output
-  echo "status: "$status
+  echo "output: $output"
+  echo "status: $status"
   assert_failure
 }