diff --git a/test/custom_task_test.go b/test/custom_task_test.go
index 604f66db2b5..965fe6bb905 100644
--- a/test/custom_task_test.go
+++ b/test/custom_task_test.go
@@ -729,9 +729,10 @@ func resetConfigMap(ctx context.Context, t *testing.T, c *clients, namespace, co
 func getFeatureFlagsBaseOnAPIFlag(t *testing.T) *config.FeatureFlags {
 	t.Helper()
 	alphaFeatureFlags, err := config.NewFeatureFlagsFromMap(map[string]string{
-		"enable-api-fields":         "alpha",
-		"results-from":              "sidecar-logs",
-		"enable-tekton-oci-bundles": "true",
+		"enable-api-fields":            "alpha",
+		"results-from":                 "sidecar-logs",
+		"enable-tekton-oci-bundles":    "true",
+		"enable-cel-in-whenexpression": "true",
 	})
 	if err != nil {
 		t.Fatalf("error creating alpha feature flags configmap: %v", err)