diff --git a/src/wifi/model/eht/eht-capabilities.cc b/src/wifi/model/eht/eht-capabilities.cc
index c612f0470..1db841e79 100644
--- a/src/wifi/model/eht/eht-capabilities.cc
+++ b/src/wifi/model/eht/eht-capabilities.cc
@@ -594,7 +594,7 @@ EhtCapabilities::SetSupportedTxEhtMcsAndNss(EhtMcsAndNssSet::EhtMcsMapType mapTy
 }
 
 uint8_t
-EhtCapabilities::GetHighestSupportedRxMcs(EhtMcsAndNssSet::EhtMcsMapType mapType)
+EhtCapabilities::GetHighestSupportedRxMcs(EhtMcsAndNssSet::EhtMcsMapType mapType) const
 {
     const auto it = m_supportedEhtMcsAndNssSet.supportedEhtMcsAndNssSet.find(mapType);
     if (it == m_supportedEhtMcsAndNssSet.supportedEhtMcsAndNssSet.cend())
@@ -629,7 +629,7 @@ EhtCapabilities::GetHighestSupportedRxMcs(EhtMcsAndNssSet::EhtMcsMapType mapType
 }
 
 uint8_t
-EhtCapabilities::GetHighestSupportedTxMcs(EhtMcsAndNssSet::EhtMcsMapType mapType)
+EhtCapabilities::GetHighestSupportedTxMcs(EhtMcsAndNssSet::EhtMcsMapType mapType) const
 {
     const auto it = m_supportedEhtMcsAndNssSet.supportedEhtMcsAndNssSet.find(mapType);
     if (it == m_supportedEhtMcsAndNssSet.supportedEhtMcsAndNssSet.cend())
diff --git a/src/wifi/model/eht/eht-capabilities.h b/src/wifi/model/eht/eht-capabilities.h
index 29f7e1da2..079de0983 100644
--- a/src/wifi/model/eht/eht-capabilities.h
+++ b/src/wifi/model/eht/eht-capabilities.h
@@ -308,14 +308,14 @@ class EhtCapabilities : public WifiInformationElement
      * @param mapType the EHT-MCS map type
      * @return the highest supported RX MCS for the given EHT-MCS map type
      */
-    uint8_t GetHighestSupportedRxMcs(EhtMcsAndNssSet::EhtMcsMapType mapType);
+    uint8_t GetHighestSupportedRxMcs(EhtMcsAndNssSet::EhtMcsMapType mapType) const;
     /**
      * Get the highest supported TX MCS for a given EHT-MCS map type.
      *
      * @param mapType the EHT-MCS map type
      * @return the highest supported TX MCS for the given EHT-MCS map type
      */
-    uint8_t GetHighestSupportedTxMcs(EhtMcsAndNssSet::EhtMcsMapType mapType);
+    uint8_t GetHighestSupportedTxMcs(EhtMcsAndNssSet::EhtMcsMapType mapType) const;
 
     /**
      * Set the EHT PPE threshold info subfield