diff --git a/core/java/android/net/NetworkAgentConfig.java b/core/java/android/net/NetworkAgentConfig.java
index c29d23d..fe1268d 100644
--- a/core/java/android/net/NetworkAgentConfig.java
+++ b/core/java/android/net/NetworkAgentConfig.java
@@ -272,6 +272,7 @@
          * Sets the subscriber ID for this network.
          *
          * @return this builder, to facilitate chaining.
+         * @hide
          */
         @NonNull
         public Builder setSubscriberId(@Nullable String subscriberId) {