diff --git a/pkg/apis/pipeline/v1beta1/taskrun_types.go b/pkg/apis/pipeline/v1beta1/taskrun_types.go
index 79b08c498d6..7bc280b1d8c 100644
--- a/pkg/apis/pipeline/v1beta1/taskrun_types.go
+++ b/pkg/apis/pipeline/v1beta1/taskrun_types.go
@@ -220,18 +220,18 @@ func (trs *TaskRunStatus) SetCondition(newCond *apis.Condition) {
 
 // StepState reports the results of running a step in a Task.
 type StepState struct {
-	corev1.ContainerState
-	Name          string `json:"name,omitempty"`
-	ContainerName string `json:"container,omitempty"`
-	ImageID       string `json:"imageID,omitempty"`
+	corev1.ContainerState `json:",inline"`
+	Name                  string `json:"name,omitempty"`
+	ContainerName         string `json:"container,omitempty"`
+	ImageID               string `json:"imageID,omitempty"`
 }
 
 // SidecarState reports the results of running a sidecar in a Task.
 type SidecarState struct {
-	corev1.ContainerState
-	Name          string `json:"name,omitempty"`
-	ContainerName string `json:"container,omitempty"`
-	ImageID       string `json:"imageID,omitempty"`
+	corev1.ContainerState `json:",inline"`
+	Name                  string `json:"name,omitempty"`
+	ContainerName         string `json:"container,omitempty"`
+	ImageID               string `json:"imageID,omitempty"`
 }
 
 // CloudEventDelivery is the target of a cloud event along with the state of