diff --git a/sandboxed_api/sandbox2/util/BUILD.bazel b/sandboxed_api/sandbox2/util/BUILD.bazel
index 8e28039..f22a9de 100644
--- a/sandboxed_api/sandbox2/util/BUILD.bazel
+++ b/sandboxed_api/sandbox2/util/BUILD.bazel
@@ -27,6 +27,7 @@ cc_library(
     hdrs = ["bpf_helper.h"],
     copts = sapi_platform_copts([
     ]),
+    visibility = ["//visibility:public"],
 )
 
 # String file routines