diff --git a/core/java/android/net/NetworkStateSnapshot.java b/core/java/android/net/NetworkStateSnapshot.java
index 9df861a..3915634 100644
--- a/core/java/android/net/NetworkStateSnapshot.java
+++ b/core/java/android/net/NetworkStateSnapshot.java
@@ -104,7 +104,10 @@
         return mSubscriberId;
     }
 
-    /** Get the legacy type of the network associated with this snapshot. */
+    /**
+     * Get the legacy type of the network associated with this snapshot.
+     * @return the legacy network type. See {@code ConnectivityManager#TYPE_*}.
+     */
     public int getLegacyType() {
         return mLegacyType;
     }