diff --git a/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer_test.go b/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer_test.go
index d4fb964cb..f9b5bbc1e 100644
--- a/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer_test.go
+++ b/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer_test.go
@@ -89,7 +89,7 @@ spec:
       containers:
       - image: myapp
         name: main
-        ---
+---
 apiVersion: apiextensions.k8s.io/v1beta1
 kind: CustomResourceDefinition
 metadata: