diff --git a/include/grpcpp/impl/codegen/client_callback.h b/include/grpcpp/impl/codegen/client_callback.h
index 3522fc9ded4..f6bd6108af4 100644
--- a/include/grpcpp/impl/codegen/client_callback.h
+++ b/include/grpcpp/impl/codegen/client_callback.h
@@ -110,6 +110,8 @@ class CallbackUnaryCallImpl {
 // Base class for public API classes.
 class ClientReactor {
  public:
+  virtual ~ClientReactor() = default;
+
   /// Called by the library when all operations associated with this RPC have
   /// completed and all Holds have been removed. OnDone provides the RPC status
   /// outcome for both successful and failed RPCs. If it is never called on an
@@ -224,8 +226,6 @@ class ClientCallbackUnary {
 template <class Request, class Response>
 class ClientBidiReactor : public internal::ClientReactor {
  public:
-  virtual ~ClientBidiReactor() {}
-
   /// Activate the RPC and initiate any reads or writes that have been Start'ed
   /// before this call. All streaming RPCs issued by the client MUST have
   /// StartCall invoked on them (even if they are canceled) as this call is the
@@ -362,8 +362,6 @@ class ClientBidiReactor : public internal::ClientReactor {
 template <class Response>
 class ClientReadReactor : public internal::ClientReactor {
  public:
-  virtual ~ClientReadReactor() {}
-
   void StartCall() { reader_->StartCall(); }
   void StartRead(Response* resp) { reader_->Read(resp); }
 
@@ -389,8 +387,6 @@ class ClientReadReactor : public internal::ClientReactor {
 template <class Request>
 class ClientWriteReactor : public internal::ClientReactor {
  public:
-  virtual ~ClientWriteReactor() {}
-
   void StartCall() { writer_->StartCall(); }
   void StartWrite(const Request* req) {
     StartWrite(req, ::grpc::WriteOptions());
@@ -435,8 +431,6 @@ class ClientWriteReactor : public internal::ClientReactor {
 /// initiation API among all the reactor flavors.
 class ClientUnaryReactor : public internal::ClientReactor {
  public:
-  virtual ~ClientUnaryReactor() {}
-
   void StartCall() { call_->StartCall(); }
   void OnDone(const ::grpc::Status& /*s*/) override {}
   virtual void OnReadInitialMetadataDone(bool /*ok*/) {}