diff --git a/src/wifi/model/eht/emlsr-manager.cc b/src/wifi/model/eht/emlsr-manager.cc
index 178f792fb..0649b904d 100644
--- a/src/wifi/model/eht/emlsr-manager.cc
+++ b/src/wifi/model/eht/emlsr-manager.cc
@@ -59,12 +59,15 @@ EmlsrManager::GetTypeId()
             .AddAttribute(
                 "MainPhyId",
                 "The ID of the main PHY (position in the vector of PHYs held by "
-                "WifiNetDevice). This attribute cannot be set after initialization.",
+                "WifiNetDevice). This attribute cannot be set after construction.",
+                TypeId::ATTR_GET | TypeId::ATTR_CONSTRUCT, // prevent setting after construction
                 UintegerValue(0),
                 MakeUintegerAccessor(&EmlsrManager::SetMainPhyId, &EmlsrManager::GetMainPhyId),
                 MakeUintegerChecker<uint8_t>())
             .AddAttribute("AuxPhyChannelWidth",
                           "The maximum channel width (MHz) supported by Aux PHYs",
+                          TypeId::ATTR_GET |
+                              TypeId::ATTR_CONSTRUCT, // prevent setting after construction
                           UintegerValue(20),
                           MakeUintegerAccessor(&EmlsrManager::m_auxPhyMaxWidth),
                           MakeUintegerChecker<uint16_t>(20, 160))
diff --git a/src/wifi/model/eht/emlsr-manager.h b/src/wifi/model/eht/emlsr-manager.h
index 2bec469ce..82ae1d995 100644
--- a/src/wifi/model/eht/emlsr-manager.h
+++ b/src/wifi/model/eht/emlsr-manager.h
@@ -73,14 +73,6 @@ class EmlsrManager : public Object
      */
     std::optional<Time> GetTransitionTimeout() const;
 
-    /**
-     * Set the ID of main PHY (position in the vector of PHYs held by WifiNetDevice). This
-     * method cannot be called during or after initialization.
-     *
-     * \param mainPhyId the ID of the main PHY
-     */
-    void SetMainPhyId(uint8_t mainPhyId);
-
     /**
      * \return the ID of main PHY (position in the vector of PHYs held by WifiNetDevice)
      */
@@ -196,6 +188,14 @@ class EmlsrManager : public Object
     uint16_t m_auxPhyMaxWidth; //!< max channel width (MHz) supported by aux PHYs
 
   private:
+    /**
+     * Set the ID of main PHY (position in the vector of PHYs held by WifiNetDevice). This
+     * method cannot be called during or after initialization.
+     *
+     * \param mainPhyId the ID of the main PHY
+     */
+    void SetMainPhyId(uint8_t mainPhyId);
+
     /**
      * Compute the operating channels that the main PHY and the aux PHY(s) must switch to in order
      * to operate on each of the setup links. The operating channels may be different due to