diff --git a/metropolis/proto/api/BUILD.bazel b/metropolis/proto/api/BUILD.bazel
index a849a07..580e184 100644
--- a/metropolis/proto/api/BUILD.bazel
+++ b/metropolis/proto/api/BUILD.bazel
@@ -41,7 +41,10 @@
 
 go_proto_library(
     name = "api_go_proto",
-    compilers = ["@io_bazel_rules_go//proto:go_grpc"],
+    compilers = [
+        "@io_bazel_rules_go//proto:go_proto",
+        "@io_bazel_rules_go//proto:go_grpc_v2",
+    ],
     importpath = "source.monogon.dev/metropolis/proto/api",
     proto = ":api_proto",
     visibility = ["//visibility:public"],