diff --git a/framework/src/android/net/IpPrefix.java b/framework/src/android/net/IpPrefix.java
index c26a0b5..bf4481a 100644
--- a/framework/src/android/net/IpPrefix.java
+++ b/framework/src/android/net/IpPrefix.java
@@ -87,7 +87,9 @@
      *
      * @param address the IP address. Must be non-null.
      * @param prefixLength the prefix length. Must be &gt;= 0 and &lt;= (32 or 128) (IPv4 or IPv6).
+     * @hide
      */
+    @SystemApi
     public IpPrefix(@NonNull InetAddress address, @IntRange(from = 0, to = 128) int prefixLength) {
         // We don't reuse the (byte[], int) constructor because it calls clone() on the byte array,
         // which is unnecessary because getAddress() already returns a clone.