diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index bd45761..de99aec 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -1669,7 +1669,7 @@
                         continue;
                     }
 
-                    int prefix = destination.getNetworkPrefixLength();
+                    int prefix = destination.getPrefixLength();
                     InetAddress addrMasked = NetworkUtils.getNetworkPart(address, prefix);
                     InetAddress destMasked = NetworkUtils.getNetworkPart(destination.getAddress(),
                             prefix);