diff --git a/src/wifi/model/originator-block-ack-agreement.cc b/src/wifi/model/originator-block-ack-agreement.cc
index 440d6bf57..42c947e82 100644
--- a/src/wifi/model/originator-block-ack-agreement.cc
+++ b/src/wifi/model/originator-block-ack-agreement.cc
@@ -94,12 +94,6 @@ OriginatorBlockAckAgreement::NotifyMpduTransmission (uint16_t nextSeqNumber)
     }
 }
 
-bool
-OriginatorBlockAckAgreement::IsBlockAckRequestNeeded (void) const
-{
-  return m_needBlockAckReq;
-}
-
 void
 OriginatorBlockAckAgreement::CompleteExchange (void)
 {
diff --git a/src/wifi/model/originator-block-ack-agreement.h b/src/wifi/model/originator-block-ack-agreement.h
index 2b065a0a4..a95cf2d37 100644
--- a/src/wifi/model/originator-block-ack-agreement.h
+++ b/src/wifi/model/originator-block-ack-agreement.h
@@ -163,14 +163,6 @@ public:
    * \param nextSeqNumber
    */
   void NotifyMpduTransmission (uint16_t nextSeqNumber);
-  /**
-   * Returns true if all packets for which a block ack was negotiated have been transmitted so
-   * a block ack request is needed in order to acknowledge them.
-   *
-   * \return  true if all packets for which a block ack was negotiated have been transmitted,
-   * false otherwise
-   */
-  bool IsBlockAckRequestNeeded (void) const;
   /// Complete exchange function
   void CompleteExchange (void);