diff --git a/scapy/route6.py b/scapy/route6.py
index fca4fb92f3eb642d9e5a40266d1635e6af47a377..953339905820363c3ba8014a42162fedaaf0fae4 100644
--- a/scapy/route6.py
+++ b/scapy/route6.py
@@ -217,8 +217,8 @@ class Route6:
             warning("No route found for IPv6 destination %s (no default route?)" % dst)
             return (LOOPBACK_NAME, "::", "::") # XXX Linux specific
 
-        pathes.sort()
-        pathes.reverse()
+        # Sort with longest prefix first
+        pathes.sort(reverse=True)
 
         best_plen = pathes[0][0]
         pathes = filter(lambda x: x[0] == best_plen, pathes)