diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp
--- a/src/bitcoin-cli.cpp
+++ b/src/bitcoin-cli.cpp
@@ -240,6 +240,7 @@
  */
 class BaseRequestHandler {
 public:
+    virtual ~BaseRequestHandler() {}
     virtual UniValue PrepareRequest(const std::string &method,
                                     const std::vector<std::string> &args) = 0;
     virtual UniValue ProcessReply(const UniValue &batch_in) = 0;