diff --git a/pw_bluetooth_sapphire/host/gap/bredr_connection_manager.cc b/pw_bluetooth_sapphire/host/gap/bredr_connection_manager.cc
index 370369b4e7..92b5d584ca 100644
--- a/pw_bluetooth_sapphire/host/gap/bredr_connection_manager.cc
+++ b/pw_bluetooth_sapphire/host/gap/bredr_connection_manager.cc
@@ -1552,23 +1552,25 @@ BrEdrConnectionManager::OnUserConfirmationRequest(
 }
 
 hci::CommandChannel::EventCallbackResult
-BrEdrConnectionManager::OnUserPasskeyRequest(const hci::EventPacket& event) {
-  BT_DEBUG_ASSERT(event.event_code() == hci_spec::kUserPasskeyRequestEventCode);
-  const auto& params = event.params<hci_spec::UserPasskeyRequestEventParams>();
+BrEdrConnectionManager::OnUserPasskeyRequest(
+    const hci::EmbossEventPacket& event_packet) {
+  auto params =
+      event_packet.view<pw::bluetooth::emboss::UserPasskeyRequestEventView>();
+  DeviceAddressBytes bd_addr = DeviceAddressBytes(params.bd_addr());
 
-  auto conn_pair = FindConnectionByAddress(params.bd_addr);
+  auto conn_pair = FindConnectionByAddress(bd_addr);
   if (!conn_pair) {
     bt_log(WARN,
            "gap-bredr",
            "got %s for unconnected addr %s",
            __func__,
-           bt_str(params.bd_addr));
-    SendUserPasskeyRequestNegativeReply(params.bd_addr);
+           bt_str(bd_addr));
+    SendUserPasskeyRequestNegativeReply(bd_addr);
     return hci::CommandChannel::EventCallbackResult::kContinue;
   }
 
-  auto passkey_cb = [self = weak_self_.GetWeakPtr(), bd_addr = params.bd_addr](
-                        std::optional<uint32_t> passkey) {
+  auto passkey_cb = [self = weak_self_.GetWeakPtr(),
+                     bd_addr](std::optional<uint32_t> passkey) {
     if (!self.is_alive()) {
       return;
     }
diff --git a/pw_bluetooth_sapphire/public/pw_bluetooth_sapphire/internal/host/gap/bredr_connection_manager.h b/pw_bluetooth_sapphire/public/pw_bluetooth_sapphire/internal/host/gap/bredr_connection_manager.h
index 5b45419001..29024d81b0 100644
--- a/pw_bluetooth_sapphire/public/pw_bluetooth_sapphire/internal/host/gap/bredr_connection_manager.h
+++ b/pw_bluetooth_sapphire/public/pw_bluetooth_sapphire/internal/host/gap/bredr_connection_manager.h
@@ -286,7 +286,7 @@ class BrEdrConnectionManager final {
   hci::CommandChannel::EventCallbackResult OnUserConfirmationRequest(
       const hci::EmbossEventPacket& event_packet);
   hci::CommandChannel::EventCallbackResult OnUserPasskeyRequest(
-      const hci::EventPacket& event);
+      const hci::EmbossEventPacket& event_packet);
   hci::CommandChannel::EventCallbackResult OnUserPasskeyNotification(
       const hci::EventPacket& event);
   hci::CommandChannel::EventCallbackResult OnRoleChange(
diff --git a/pw_bluetooth_sapphire/public/pw_bluetooth_sapphire/internal/host/hci-spec/protocol.h b/pw_bluetooth_sapphire/public/pw_bluetooth_sapphire/internal/host/hci-spec/protocol.h
index 379f1cb391..56db1d8cbb 100644
--- a/pw_bluetooth_sapphire/public/pw_bluetooth_sapphire/internal/host/hci-spec/protocol.h
+++ b/pw_bluetooth_sapphire/public/pw_bluetooth_sapphire/internal/host/hci-spec/protocol.h
@@ -925,11 +925,6 @@ constexpr EventCode kUserConfirmationRequestEventCode = 0x33;
 // User Passkey Request Event (v2.1 + EDR) (BR/EDR)
 constexpr EventCode kUserPasskeyRequestEventCode = 0x34;
 
-struct UserPasskeyRequestEventParams {
-  // Address of the device involved in simple pairing process
-  DeviceAddressBytes bd_addr;
-} __attribute__((packed));
-
 // ===================================================
 // Simple Pairing Complete Event (v2.1 + EDR) (BR/EDR)
 constexpr EventCode kSimplePairingCompleteEventCode = 0x36;