diff --git a/metropolis/proto/ext/BUILD.bazel b/metropolis/proto/ext/BUILD.bazel
index c93882e..e84153b 100644
--- a/metropolis/proto/ext/BUILD.bazel
+++ b/metropolis/proto/ext/BUILD.bazel
@@ -17,7 +17,7 @@
 )
 
 go_library(
-    name = "go_default_library",
+    name = "ext",
     embed = [":ext_go_proto"],
     importpath = "source.monogon.dev/metropolis/proto/ext",
     visibility = ["//visibility:public"],