diff --git a/src/wifi/model/rrpaa-wifi-manager.cc b/src/wifi/model/rrpaa-wifi-manager.cc
index bf95e894d..68dad75cd 100644
--- a/src/wifi/model/rrpaa-wifi-manager.cc
+++ b/src/wifi/model/rrpaa-wifi-manager.cc
@@ -208,6 +208,7 @@ Thresholds
 RrpaaWifiManager::GetThresholds (RrpaaWifiRemoteStation *station, WifiMode mode) const
 {
   NS_LOG_FUNCTION (this << station << mode);
+  struct Thresholds threshold;
   for (RrpaaThresholdsTable::const_iterator i = station->m_thresholds.begin (); i != station->m_thresholds.end (); i++)
     {
       if (mode == i->second)
@@ -215,7 +216,8 @@ RrpaaWifiManager::GetThresholds (RrpaaWifiRemoteStation *station, WifiMode mode)
           return i->first;
         }
     }
-  NS_ASSERT (false);
+  NS_ABORT_MSG ("No thresholds for mode " << mode << " found");
+  return threshold; // Silence compiler warning
 }
 
 WifiRemoteStation *