diff --git a/connections/implementation/proto/BUILD b/connections/implementation/proto/BUILD
index ec6e782b..be1bba96 100644
--- a/connections/implementation/proto/BUILD
+++ b/connections/implementation/proto/BUILD
@@ -22,7 +22,7 @@ proto_library(
         "offline_wire_formats.proto",
     ],
     visibility = [
-        "//internal/platform/implementation/apple:__subpackages__",
+        "//visibility:private",  # Only private by automation, not intent. Owner may accept CLs adding visibility. See go/scheuklappen#explicit-private.
     ],
 )