diff --git a/pkg/apis/pipeline/constant.go b/pkg/apis/pipeline/constant.go
index 5fceccbf50b..19604205b84 100644
--- a/pkg/apis/pipeline/constant.go
+++ b/pkg/apis/pipeline/constant.go
@@ -18,5 +18,5 @@ package pipeline
 
 const (
 	// TektonReservedAnnotationExpr is the expression we use to filter out reserved key in annotation
-	TektonReservedAnnotationExpr = "(results.tekton.dev|chains.tekton.dev)/.*"
+	TektonReservedAnnotationExpr = "(chains.tekton.dev)/.*"
 )
diff --git a/pkg/apis/pipeline/v1/pipelinerun_defaults_test.go b/pkg/apis/pipeline/v1/pipelinerun_defaults_test.go
index 4972faf3de1..c7a1878b7c9 100644
--- a/pkg/apis/pipeline/v1/pipelinerun_defaults_test.go
+++ b/pkg/apis/pipeline/v1/pipelinerun_defaults_test.go
@@ -465,7 +465,7 @@ func TestPipelineRunDefaultingOnCreate(t *testing.T) {
 		},
 		want: &v1.PipelineRun{
 			ObjectMeta: metav1.ObjectMeta{
-				Annotations: map[string]string{"tekton.dev/foo": "bar", "foo": "bar"},
+				Annotations: map[string]string{"results.tekton.dev/hello": "world", "tekton.dev/foo": "bar", "foo": "bar"},
 			},
 			Spec: v1.PipelineRunSpec{
 				TaskRunTemplate: v1.PipelineTaskRunTemplate{
diff --git a/pkg/apis/pipeline/v1/taskrun_defaults_test.go b/pkg/apis/pipeline/v1/taskrun_defaults_test.go
index dbb8ebe84bb..e7f21901ea8 100644
--- a/pkg/apis/pipeline/v1/taskrun_defaults_test.go
+++ b/pkg/apis/pipeline/v1/taskrun_defaults_test.go
@@ -451,7 +451,7 @@ func TestTaskRunDefaultingOnCreate(t *testing.T) {
 		want: &v1.TaskRun{
 			ObjectMeta: metav1.ObjectMeta{
 				Labels:      map[string]string{"app.kubernetes.io/managed-by": "tekton-pipelines"},
-				Annotations: map[string]string{"tekton.dev/foo": "bar", "foo": "bar"},
+				Annotations: map[string]string{"results.tekton.dev/hello": "world", "tekton.dev/foo": "bar", "foo": "bar"},
 			},
 			Spec: v1.TaskRunSpec{
 				TaskRef: &v1.TaskRef{
diff --git a/pkg/apis/pipeline/v1beta1/pipelinerun_defaults_test.go b/pkg/apis/pipeline/v1beta1/pipelinerun_defaults_test.go
index d0c9eb576a5..a2853a95bce 100644
--- a/pkg/apis/pipeline/v1beta1/pipelinerun_defaults_test.go
+++ b/pkg/apis/pipeline/v1beta1/pipelinerun_defaults_test.go
@@ -420,7 +420,7 @@ func TestPipelineRunDefaultingOnCreate(t *testing.T) {
 		},
 		want: &v1beta1.PipelineRun{
 			ObjectMeta: metav1.ObjectMeta{
-				Annotations: map[string]string{"tekton.dev/foo": "bar", "foo": "bar"},
+				Annotations: map[string]string{"results.tekton.dev/hello": "world", "tekton.dev/foo": "bar", "foo": "bar"},
 			},
 			Spec: v1beta1.PipelineRunSpec{
 				ServiceAccountName: config.DefaultServiceAccountValue,
diff --git a/pkg/apis/pipeline/v1beta1/taskrun_defaults_test.go b/pkg/apis/pipeline/v1beta1/taskrun_defaults_test.go
index 58e421741cf..e560ca1f72a 100644
--- a/pkg/apis/pipeline/v1beta1/taskrun_defaults_test.go
+++ b/pkg/apis/pipeline/v1beta1/taskrun_defaults_test.go
@@ -435,7 +435,7 @@ func TestTaskRunDefaultingOnCreate(t *testing.T) {
 		want: &v1beta1.TaskRun{
 			ObjectMeta: metav1.ObjectMeta{
 				Labels:      map[string]string{"app.kubernetes.io/managed-by": "tekton-pipelines"},
-				Annotations: map[string]string{"tekton.dev/foo": "bar", "foo": "bar"},
+				Annotations: map[string]string{"results.tekton.dev/hello": "world", "tekton.dev/foo": "bar", "foo": "bar"},
 			},
 			Spec: v1beta1.TaskRunSpec{
 				TaskRef: &v1beta1.TaskRef{
diff --git a/pkg/reconciler/pipelinerun/pipelinerun_test.go b/pkg/reconciler/pipelinerun/pipelinerun_test.go
index bf8718f35c5..ab35dc88702 100644
--- a/pkg/reconciler/pipelinerun/pipelinerun_test.go
+++ b/pkg/reconciler/pipelinerun/pipelinerun_test.go
@@ -12622,7 +12622,6 @@ func TestReconcile_FilterLabels(t *testing.T) {
   namespace: foo
   annotations:
     chains.tekton.dev/signed: "true"
-    results.tekton.dev/foo: "bar"
     tekton.dev/foo: "bar"
     foo: bar
 spec: