diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioConfig.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioConfig.h
index bbfff61..89ddea0 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioConfig.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioConfig.h
@@ -39,8 +39,6 @@
     const sp<RadioConfigResponse> mRadioConfigResponse;
     const sp<RadioConfigIndication> mRadioConfigIndication;
 
-    std::shared_ptr<::aidl::android::hardware::radio::config::IRadioConfigResponse> respond();
-
     ::ndk::ScopedAStatus getHalDeviceCapabilities(int32_t serial) override;
     ::ndk::ScopedAStatus getNumOfLiveModems(int32_t serial) override;
     ::ndk::ScopedAStatus getPhoneCapability(int32_t serial) override;
@@ -57,6 +55,9 @@
             const std::vector<aidl::android::hardware::radio::config::SlotPortMapping>& slotMap)
             override;
 
+  protected:
+    std::shared_ptr<::aidl::android::hardware::radio::config::IRadioConfigResponse> respond();
+
   public:
     /**
      * Constructs AIDL IRadioConfig instance wrapping existing HIDL IRadioConfig instance.
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioData.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioData.h
index c2c0de3..da19811 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioData.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioData.h
@@ -22,8 +22,6 @@
 namespace android::hardware::radio::compat {
 
 class RadioData : public RadioCompatBase, public aidl::android::hardware::radio::data::BnRadioData {
-    std::shared_ptr<::aidl::android::hardware::radio::data::IRadioDataResponse> respond();
-
     ::ndk::ScopedAStatus allocatePduSessionId(int32_t serial) override;
     ::ndk::ScopedAStatus cancelHandover(int32_t serial, int32_t callId) override;
     ::ndk::ScopedAStatus deactivateDataCall(
@@ -65,6 +63,9 @@
             const ::aidl::android::hardware::radio::data::KeepaliveRequest& keepalive) override;
     ::ndk::ScopedAStatus stopKeepalive(int32_t serial, int32_t sessionHandle) override;
 
+  protected:
+    std::shared_ptr<::aidl::android::hardware::radio::data::IRadioDataResponse> respond();
+
   public:
     using RadioCompatBase::RadioCompatBase;
 };
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioMessaging.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioMessaging.h
index 047f836..1af406a 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioMessaging.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioMessaging.h
@@ -23,8 +23,6 @@
 
 class RadioMessaging : public RadioCompatBase,
                        public aidl::android::hardware::radio::messaging::BnRadioMessaging {
-    std::shared_ptr<::aidl::android::hardware::radio::messaging::IRadioMessagingResponse> respond();
-
     ::ndk::ScopedAStatus acknowledgeIncomingGsmSmsWithPdu(int32_t serial, bool success,
                                                           const std::string& ackPdu) override;
     ::ndk::ScopedAStatus acknowledgeLastIncomingCdmaSms(
@@ -82,6 +80,9 @@
             int32_t serial,
             const ::aidl::android::hardware::radio::messaging::SmsWriteArgs& smsWriteArgs) override;
 
+  protected:
+    std::shared_ptr<::aidl::android::hardware::radio::messaging::IRadioMessagingResponse> respond();
+
   public:
     using RadioCompatBase::RadioCompatBase;
 };
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioModem.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioModem.h
index fdca124..beb1fb0 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioModem.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioModem.h
@@ -23,8 +23,6 @@
 
 class RadioModem : public RadioCompatBase,
                    public aidl::android::hardware::radio::modem::BnRadioModem {
-    std::shared_ptr<::aidl::android::hardware::radio::modem::IRadioModemResponse> respond();
-
     ::ndk::ScopedAStatus enableModem(int32_t serial, bool on) override;
     ::ndk::ScopedAStatus getBasebandVersion(int32_t serial) override;
     ::ndk::ScopedAStatus getDeviceIdentity(int32_t serial) override;
@@ -54,6 +52,9 @@
             const std::shared_ptr<::aidl::android::hardware::radio::modem::IRadioModemIndication>&
                     radioModemIndication) override;
 
+  protected:
+    std::shared_ptr<::aidl::android::hardware::radio::modem::IRadioModemResponse> respond();
+
   public:
     using RadioCompatBase::RadioCompatBase;
 };
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioNetwork.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioNetwork.h
index 1731b78..9784665 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioNetwork.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioNetwork.h
@@ -23,8 +23,6 @@
 
 class RadioNetwork : public RadioCompatBase,
                      public aidl::android::hardware::radio::network::BnRadioNetwork {
-    std::shared_ptr<::aidl::android::hardware::radio::network::IRadioNetworkResponse> respond();
-
     ::ndk::ScopedAStatus getAllowedNetworkTypesBitmap(int32_t serial) override;
     ::ndk::ScopedAStatus getAvailableBandModes(int32_t serial) override;
     ::ndk::ScopedAStatus getAvailableNetworks(int32_t serial) override;
@@ -92,6 +90,9 @@
             ::aidl::android::hardware::radio::network::UsageSetting usageSetting) override;
     ::ndk::ScopedAStatus getUsageSetting(int32_t serial) override;
 
+  protected:
+    std::shared_ptr<::aidl::android::hardware::radio::network::IRadioNetworkResponse> respond();
+
   public:
     using RadioCompatBase::RadioCompatBase;
 };
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioSim.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioSim.h
index 84bb68b..ff91aef 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioSim.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioSim.h
@@ -22,8 +22,6 @@
 namespace android::hardware::radio::compat {
 
 class RadioSim : public RadioCompatBase, public aidl::android::hardware::radio::sim::BnRadioSim {
-    std::shared_ptr<::aidl::android::hardware::radio::sim::IRadioSimResponse> respond();
-
     ::ndk::ScopedAStatus areUiccApplicationsEnabled(int32_t serial) override;
     ::ndk::ScopedAStatus changeIccPin2ForApp(int32_t serial, const std::string& oldPin2,
                                              const std::string& newPin2,
@@ -102,6 +100,9 @@
             int32_t serial,
             const ::aidl::android::hardware::radio::sim::PhonebookRecordInfo& recordInfo) override;
 
+  protected:
+    std::shared_ptr<::aidl::android::hardware::radio::sim::IRadioSimResponse> respond();
+
   public:
     using RadioCompatBase::RadioCompatBase;
 };
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioVoice.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioVoice.h
index 0f1d5fd..7bc998e 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioVoice.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioVoice.h
@@ -23,8 +23,6 @@
 
 class RadioVoice : public RadioCompatBase,
                    public aidl::android::hardware::radio::voice::BnRadioVoice {
-    std::shared_ptr<::aidl::android::hardware::radio::voice::IRadioVoiceResponse> respond();
-
     ::ndk::ScopedAStatus acceptCall(int32_t serial) override;
     ::ndk::ScopedAStatus cancelPendingUssd(int32_t serial) override;
     ::ndk::ScopedAStatus conference(int32_t serial) override;
@@ -80,6 +78,9 @@
     ::ndk::ScopedAStatus stopDtmf(int32_t serial) override;
     ::ndk::ScopedAStatus switchWaitingOrHoldingAndActive(int32_t serial) override;
 
+  protected:
+    std::shared_ptr<::aidl::android::hardware::radio::voice::IRadioVoiceResponse> respond();
+
   public:
     using RadioCompatBase::RadioCompatBase;
 };