diff --git a/cpp/platform/impl/windows/ble.h b/cpp/platform/impl/windows/ble.h
index 01122f33..4141f732 100644
--- a/cpp/platform/impl/windows/ble.h
+++ b/cpp/platform/impl/windows/ble.h
@@ -43,7 +43,7 @@ class BlePeripheral : public api::BlePeripheral {
 class BleSocket : public api::BleSocket {
  public:
   // TODO(b/184975123): replace with real implementation.
-  ~BleSocket();
+  ~BleSocket() override;
 
   // Returns the InputStream of the BleSocket.
   // On error, returned stream will report Exception::kIo on any operation.
diff --git a/cpp/platform/impl/windows/bluetooth_classic.h b/cpp/platform/impl/windows/bluetooth_classic.h
index 96344b86..7681e710 100644
--- a/cpp/platform/impl/windows/bluetooth_classic.h
+++ b/cpp/platform/impl/windows/bluetooth_classic.h
@@ -42,7 +42,7 @@ class BluetoothDevice : public api::BluetoothDevice {
 class BluetoothSocket : public api::BluetoothSocket {
  public:
   // TODO(b/184975123): replace with real implementation.
-  ~BluetoothSocket();
+  ~BluetoothSocket() override;
 
   // NOTE:
   // It is an undefined behavior if GetInputStream() or GetOutputStream() is
diff --git a/cpp/platform/impl/windows/wifi_lan.h b/cpp/platform/impl/windows/wifi_lan.h
index 1ab90695..84f5c283 100644
--- a/cpp/platform/impl/windows/wifi_lan.h
+++ b/cpp/platform/impl/windows/wifi_lan.h
@@ -42,7 +42,7 @@ class WifiLanService : public api::WifiLanService {
 class WifiLanSocket : public api::WifiLanSocket {
  public:
   // TODO(b/184975123): replace with real implementation.
-  ~WifiLanSocket();
+  ~WifiLanSocket() override;
 
   // Returns the InputStream of the WifiLanSocket.
   // On error, returned stream will report Exception::kIo on any operation.