diff --git a/src/spectrum/model/single-model-spectrum-channel.cc b/src/spectrum/model/single-model-spectrum-channel.cc
index e4c93dafc..c296de368 100644
--- a/src/spectrum/model/single-model-spectrum-channel.cc
+++ b/src/spectrum/model/single-model-spectrum-channel.cc
@@ -90,6 +90,11 @@ SingleModelSpectrumChannel::AddRx(Ptr<SpectrumPhy> phy)
     {
         m_phyList.push_back(phy);
     }
+    else
+    {
+        // PHY has switched its channel, reset m_spectrumModel
+        m_spectrumModel = nullptr;
+    }
 }
 
 void