diff --git a/esphome/components/socket/socket.cpp b/esphome/components/socket/socket.cpp
index d00ddaeae2..4c78397873 100644
--- a/esphome/components/socket/socket.cpp
+++ b/esphome/components/socket/socket.cpp
@@ -7,6 +7,8 @@
 namespace esphome {
 namespace socket {
 
+Socket::~Socket() {}
+
 std::unique_ptr<Socket> socket_ip(int type, int protocol) {
 #if LWIP_IPV6
   return socket(AF_INET6, type, protocol);
diff --git a/esphome/components/socket/socket.h b/esphome/components/socket/socket.h
index 7400ba306f..c9b8be88a0 100644
--- a/esphome/components/socket/socket.h
+++ b/esphome/components/socket/socket.h
@@ -11,7 +11,7 @@ namespace socket {
 class Socket {
  public:
   Socket() = default;
-  virtual ~Socket() = default;
+  virtual ~Socket();
   Socket(const Socket &) = delete;
   Socket &operator=(const Socket &) = delete;
 
@@ -34,7 +34,7 @@ class Socket {
   virtual ssize_t readv(const struct iovec *iov, int iovcnt) = 0;
   virtual ssize_t write(const void *buf, size_t len) = 0;
   virtual ssize_t writev(const struct iovec *iov, int iovcnt) = 0;
-  virtual ssize_t sendto(const void *buf, size_t len, int flags, const struct sockaddr *to, socklen_t tolen);
+  virtual ssize_t sendto(const void *buf, size_t len, int flags, const struct sockaddr *to, socklen_t tolen) = 0;
 
   virtual int setblocking(bool blocking) = 0;
   virtual int loop() { return 0; };
diff --git a/esphome/core/string_ref.h b/esphome/core/string_ref.h
index 5940a7ee65..f3dc3a38b0 100644
--- a/esphome/core/string_ref.h
+++ b/esphome/core/string_ref.h
@@ -1,8 +1,9 @@
 #pragma once
 
-#include <string>
-#include <iterator>
 #include <cstring>
+#include <iterator>
+#include <memory>
+#include <string>
 #include "esphome/core/defines.h"
 
 #ifdef USE_JSON