diff --git a/keystore/java/android/security/Credentials.java b/keystore/java/android/security/Credentials.java
index 572fa8c..048dee6 100644
--- a/keystore/java/android/security/Credentials.java
+++ b/keystore/java/android/security/Credentials.java
@@ -65,6 +65,9 @@
     /** Key prefix for VPN. */
     public static final String VPN = "VPN_";
 
+    /** Key prefix for platform VPNs. */
+    public static final String PLATFORM_VPN = "PLATFORM_VPN_";
+
     /** Key prefix for WIFI. */
     public static final String WIFI = "WIFI_";