diff --git a/pkg/apis/sinks/v1alpha1/job_sink_defaults_test.go b/pkg/apis/sinks/v1alpha1/job_sink_defaults_test.go
index 766ab45b0d6..a3ed1ed76ed 100644
--- a/pkg/apis/sinks/v1alpha1/job_sink_defaults_test.go
+++ b/pkg/apis/sinks/v1alpha1/job_sink_defaults_test.go
@@ -50,7 +50,7 @@ func TestSetDefaults(t *testing.T) {
 											Name:                     "cnt3",
 											Image:                    "img3",
 											Env: []corev1.EnvVar{
-												{Name: "KNATIVE_EXECUTION_MODE", Value: "something"},
+												{Name: "K_EXECUTION_MODE", Value: "something"},
 											},
 										},
 									},
@@ -63,7 +63,7 @@ func TestSetDefaults(t *testing.T) {
 											Name:                     "cnt-ini2",
 											Image:                    "img-ini2",
 											Env: []corev1.EnvVar{
-												{Name: "KNATIVE_EXECUTION_MODE", Value: "something"},
+												{Name: "K_EXECUTION_MODE", Value: "something"},
 											},
 										},
 									},
@@ -84,14 +84,14 @@ func TestSetDefaults(t *testing.T) {
 											Name:                     "cnt",
 											Image:                    "img",
 											Env: []corev1.EnvVar{
-												{Name: "KNATIVE_EXECUTION_MODE", Value: "batch"},
+												{Name: "K_EXECUTION_MODE", Value: "batch"},
 											},
 										},
 										{
 											Name:                     "cnt-ini2",
 											Image:                    "img-ini2",
 											Env: []corev1.EnvVar{
-												{Name: "KNATIVE_EXECUTION_MODE", Value: "something"},
+												{Name: "K_EXECUTION_MODE", Value: "something"},
 											},
 										},
 									},
@@ -100,21 +100,21 @@ func TestSetDefaults(t *testing.T) {
 											Name:                     "cnt",
 											Image:                    "img",
 											Env: []corev1.EnvVar{
-												{Name: "KNATIVE_EXECUTION_MODE", Value: "batch"},
+												{Name: "K_EXECUTION_MODE", Value: "batch"},
 											},
 										},
 										{
 											Name:                     "cnt2",
 											Image:                    "img2",
 											Env: []corev1.EnvVar{
-												{Name: "KNATIVE_EXECUTION_MODE", Value: "batch"},
+												{Name: "K_EXECUTION_MODE", Value: "batch"},
 											},
 										},
 										{
 											Name:                     "cnt3",
 											Image:                    "img3",
 											Env: []corev1.EnvVar{
-												{Name: "KNATIVE_EXECUTION_MODE", Value: "something"},
+												{Name: "K_EXECUTION_MODE", Value: "something"},
 											},
 										},
 									},
diff --git a/pkg/reconciler/jobsink/jobsink_test.go b/pkg/reconciler/jobsink/jobsink_test.go
index 5ee0d119f65..f44acba7bb8 100644
--- a/pkg/reconciler/jobsink/jobsink_test.go
+++ b/pkg/reconciler/jobsink/jobsink_test.go
@@ -264,7 +264,7 @@ func testJob(name string) *batchv1.Job {
 						{
 							Name: "test-container",
 							Env: []corev1.EnvVar{
-								{Name: "KNATIVE_EXECUTION_MODE", Value: "batch"},
+								{Name: "K_EXECUTION_MODE", Value: "batch"},
 							},
 						},
 					},