diff --git a/google/cloud/support/v2/BUILD.bazel b/google/cloud/support/v2/BUILD.bazel
index 4626598d8..b319209c8 100644
--- a/google/cloud/support/v2/BUILD.bazel
+++ b/google/cloud/support/v2/BUILD.bazel
@@ -242,6 +242,7 @@ php_gapic_library(
     rest_numeric_enums = True,
     service_yaml = "cloudsupport_v2.yaml",
     transport = "grpc+rest",
+    migration_mode = "NEW_SURFACE_ONLY",
     deps = [
         ":support_php_grpc",
         ":support_php_proto",