diff --git a/src/main/java/org/wfanet/estimation/BUILD.bazel b/src/main/java/org/wfanet/estimation/BUILD.bazel
index b6394b5..5867e1f 100644
--- a/src/main/java/org/wfanet/estimation/BUILD.bazel
+++ b/src/main/java/org/wfanet/estimation/BUILD.bazel
@@ -31,6 +31,7 @@ java_library(
 java_library(
     name = "estimation",
     tags = ["maven_coordinates=" + MAVEN_COORDINATES],
+    visibility = ["//visibility:public"],
     exports = [
         ":estimators",
         ":value_histogram",