diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index dc978d706..4933cb980 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -76,6 +76,7 @@ since ns-3.10, in many cases referencing the Bugzilla bug number.
    - bug 1058 - documentation help to avoid InternetStackHelper pitfall
    - bug 1054 - ipv6 InternetStackHelper EnablePcapIpv6All() broken
    - bug 1042 - AODV RERR implosion (missing RERR_RATELIMIT) 
+   - bug 1097 - AODV routing entry set to be VALID mistakenly
 
 Known issues
 ------------
diff --git a/src/aodv/model/aodv-routing-protocol.cc b/src/aodv/model/aodv-routing-protocol.cc
index 0c4b44995..4a2fcf5ef 100644
--- a/src/aodv/model/aodv-routing-protocol.cc
+++ b/src/aodv/model/aodv-routing-protocol.cc
@@ -947,11 +947,14 @@ RoutingProtocol::UpdateRouteLifeTime (Ipv4Address addr, Time lifetime)
   RoutingTableEntry rt;
   if (m_routingTable.LookupRoute (addr, rt))
     {
-      rt.SetFlag (VALID);
-      rt.SetRreqCnt (0);
-      rt.SetLifeTime (std::max (lifetime, rt.GetLifeTime ()));
-      m_routingTable.Update (rt);
-      return true;
+      if (rt.GetFlag () == VALID)
+        {
+          NS_LOG_DEBUG ("Updating VALID route");
+          rt.SetRreqCnt (0);
+          rt.SetLifeTime (std::max (lifetime, rt.GetLifeTime ()));
+          m_routingTable.Update (rt);
+          return true;
+        }
     }
   return false;
 }