diff --git a/src/buildings/model/buildings-propagation-loss-model.cc b/src/buildings/model/buildings-propagation-loss-model.cc
index 2f374733f..9c8e629a9 100644
--- a/src/buildings/model/buildings-propagation-loss-model.cc
+++ b/src/buildings/model/buildings-propagation-loss-model.cc
@@ -97,7 +97,7 @@ BuildingsPropagationLossModel::GetTypeId (void)
     .AddAttribute ("Frequency",
                    "The Frequency  (default is 2.106 GHz).",
                    DoubleValue (2160e6),
-                   MakeDoubleAccessor (&BuildingsPropagationLossModel::m_frequency),
+                   MakeDoubleAccessor (&BuildingsPropagationLossModel::SetFrequency),
                    MakeDoubleChecker<double> ())
                    
      .AddAttribute ("ShadowSigmaOutdoor",
@@ -204,12 +204,25 @@ BuildingsPropagationLossModel::SetLambda (double lambda)
   m_frequency = 300000000 / lambda;
 }
 
+void
+BuildingsPropagationLossModel::SetFrequency (double freq)
+{
+  m_frequency = freq;
+  m_lambda = 300000000 * m_frequency;
+}
+
 double
 BuildingsPropagationLossModel::GetLambda (void) const
 {
   return m_lambda;
 }
 
+double
+BuildingsPropagationLossModel::GetFrequency (void) const
+{
+  return m_frequency;
+}
+
 void
 BuildingsPropagationLossModel::SetMinDistance (double minDistance)
 {
diff --git a/src/buildings/model/buildings-propagation-loss-model.h b/src/buildings/model/buildings-propagation-loss-model.h
index 62454fe07..95e7c1545 100644
--- a/src/buildings/model/buildings-propagation-loss-model.h
+++ b/src/buildings/model/buildings-propagation-loss-model.h
@@ -84,11 +84,13 @@ public:
   void SetEnvironment (Environment env);
   void SetCitySize (CitySize size);
   void SetLambda (double lambda);
+  void SetFrequency (double freq);
   void SetMinDistance (double minDistance);
   Environment GetEnvironment (void) const;
   CitySize GetCitySize (void) const;
   double GetMinDistance (void) const;
   double GetLambda (void) const;
+  double GetFrequency (void) const;
 //   void SetLambda (double frequency, double speed);
   
   
diff --git a/src/lte/helper/lena-helper.cc b/src/lte/helper/lena-helper.cc
index 0f43d77db..9f88d912e 100644
--- a/src/lte/helper/lena-helper.cc
+++ b/src/lte/helper/lena-helper.cc
@@ -290,13 +290,11 @@ LenaHelper::InstallSingleEnbDevice (Ptr<Node> n)
     {
       double dlFreq = LteSpectrumValueHelper::GetCarrierFrequency (dev->GetDlEarfcn ());
       m_downlinkPropagationLossModel->SetAttribute ("Frequency", DoubleValue (dlFreq));
-      m_downlinkPropagationLossModel->SetAttribute ("Lambda", DoubleValue (300000000.0 /dlFreq));
     }
   if (m_ulPropagationModelFactory.GetTypeId ().GetName ().compare ( "ns3::BuildingsPropagationLossModel") == 0)
     {
       double ulFreq = LteSpectrumValueHelper::GetCarrierFrequency (dev->GetUlEarfcn ());
       m_uplinkPropagationLossModel->SetAttribute ("Frequency", DoubleValue (ulFreq));
-      m_uplinkPropagationLossModel->SetAttribute ("Lambda", DoubleValue (300000000.0 /ulFreq));
     }
   
   dev->Start ();