diff --git a/atc/api/policychecker/handler_test.go b/atc/api/policychecker/handler_test.go
index 2fd1ca95f..76a0903f2 100644
--- a/atc/api/policychecker/handler_test.go
+++ b/atc/api/policychecker/handler_test.go
@@ -2,7 +2,6 @@ package policychecker_test
 
 import (
 	"errors"
-	"github.com/concourse/concourse/atc/policy/policyfakes"
 	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
@@ -12,6 +11,7 @@ import (
 	"github.com/concourse/concourse/atc/api/policychecker"
 	"github.com/concourse/concourse/atc/api/policychecker/policycheckerfakes"
 	"github.com/concourse/concourse/atc/policy"
+	"github.com/concourse/concourse/atc/policy/policyfakes"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
diff --git a/atc/policy/opa/opa.go b/atc/policy/opa/opa.go
index b24e63142..1c6207eb5 100644
--- a/atc/policy/opa/opa.go
+++ b/atc/policy/opa/opa.go
@@ -17,7 +17,7 @@ type OpaConfig struct {
 	URL                  string        `long:"opa-url" description:"OPA policy check endpoint."`
 	Timeout              time.Duration `long:"opa-timeout" default:"5s" description:"OPA request timeout."`
 	ResultAllowedKey     string        `long:"opa-result-allowed-key" description:"Key name of if pass policy check in OPA returned result. Expects a boolean value." default:"result.allowed"`
-	ResultShouldBlockKey string        `long:"opa-result-should-block-key" description:"Key name of if should block current action in OPA returned result. Expects a boolean value."`
+	ResultShouldBlockKey string        `long:"opa-result-should-block-key" description:"Key name of if should block current action in OPA returned result. Expects a boolean value."  default:"result.block"`
 	ResultMessagesKey    string        `long:"opa-result-messages-key" description:"Key name of messages in OPA returned result." default:"result.reasons"`
 }
 
diff --git a/hack/overrides/opa.yml b/hack/overrides/opa.yml
index f89dc9a09..92595d2ab 100644
--- a/hack/overrides/opa.yml
+++ b/hack/overrides/opa.yml
@@ -12,6 +12,9 @@ services:
       CONCOURSE_POLICY_CHECK_FILTER_HTTP_METHODS: PUT,POST
 
       # uncomment to configure
+      # CONCOURSE_OPA_RESULT_ALLOW_KEY: result.allowed
+      # CONCOURSE_OPA_RESULT_SHOULD_BLOCK_KEY: result.block
+      # CONCOURSE_OPA_RESULT_MESSAGES_KEY: result.reasons
       # CONCOURSE_POLICY_CHECK_FILTER_ACTION: ListWorkers,ListContainers,UseImage,SaveConfig
       # CONCOURSE_POLICY_CHECK_FILTER_ACTION_SKIP: PausePipeline,UnpausePipeline