diff --git a/src/wifi/model/non-ht/ofdm-phy.cc b/src/wifi/model/non-ht/ofdm-phy.cc
index 2460e4f05..dd5feeeda 100644
--- a/src/wifi/model/non-ht/ofdm-phy.cc
+++ b/src/wifi/model/non-ht/ofdm-phy.cc
@@ -357,7 +357,6 @@ Ptr<SpectrumValue>
 OfdmPhy::GetTxPowerSpectralDensity(double txPowerW, Ptr<const WifiPpdu> ppdu) const
 {
     const auto& centerFrequencies = ppdu->GetTxCenterFreqs();
-    NS_ASSERT(centerFrequencies.size() == 1);
     const auto& txVector = ppdu->GetTxVector();
     const auto channelWidth = txVector.GetChannelWidth();
     NS_LOG_FUNCTION(this << centerFrequencies.front() << channelWidth << txPowerW);