diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h b/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
index beb20eadf6d6..ac6c1ef2cbcd 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
@@ -1090,7 +1090,9 @@ struct iwl_vht_sigs {
 struct iwl_he_sigs {
 #define OFDM_RX_FRAME_HE_BEAM_CHANGE			0x00000001
 #define OFDM_RX_FRAME_HE_UL_FLAG			0x00000002
+/* SU/ER-SU: MCS, MU: SIG-B MCS */
 #define OFDM_RX_FRAME_HE_MCS				0x0000003c
+/* SU/ER-SU: DCM, MU: SIG-B DCM */
 #define OFDM_RX_FRAME_HE_DCM				0x00000040
 #define OFDM_RX_FRAME_HE_BSS_COLOR			0x00001f80
 #define OFDM_RX_FRAME_HE_SPATIAL_REUSE			0x0001e000
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/rx.c b/drivers/net/wireless/intel/iwlwifi/mld/rx.c
index 4386e6b5c37c..214dcfde2fb4 100644
--- a/drivers/net/wireless/intel/iwlwifi/mld/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mld/rx.c
@@ -396,11 +396,11 @@ iwl_mld_decode_he_mu(struct iwl_mld_rx_phy_data *phy_data,
 {
 	u32 rate_n_flags = phy_data->rate_n_flags;
 
-	he_mu->flags1 |= RTAP_ENC_HE(phy_data->ntfy->sigs.he.b,
-				     OFDM_RX_FRAME_HE_SIGB_DCM,
+	he_mu->flags1 |= RTAP_ENC_HE(phy_data->ntfy->sigs.he.a1,
+				     OFDM_RX_FRAME_HE_DCM,
 				     IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM);
-	he_mu->flags1 |= RTAP_ENC_HE(phy_data->ntfy->sigs.he.b,
-				     OFDM_RX_FRAME_HE_SIGB_MCS,
+	he_mu->flags1 |= RTAP_ENC_HE(phy_data->ntfy->sigs.he.a1,
+				     OFDM_RX_FRAME_HE_MCS,
 				     IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS);
 	he_mu->flags2 |= RTAP_ENC_HE(phy_data->ntfy->sigs.he.a1,
 				     OFDM_RX_FRAME_HE_PRMBL_PUNC_TYPE,
@@ -408,7 +408,7 @@ iwl_mld_decode_he_mu(struct iwl_mld_rx_phy_data *phy_data,
 	he_mu->flags2 |= RTAP_ENC_HE(phy_data->ntfy->sigs.he.a2,
 				     OFDM_RX_FRAME_HE_MU_NUM_OF_SIGB_SYM_OR_USER_NUM,
 				     IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS);
-	he_mu->flags2 |= RTAP_ENC_HE(phy_data->ntfy->sigs.he.b,
+	he_mu->flags2 |= RTAP_ENC_HE(phy_data->ntfy->sigs.he.a2,
 				     OFDM_RX_FRAME_HE_MU_SIGB_COMP,
 				     IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP);