diff --git a/src/lib/curl/Global.cxx b/src/lib/curl/Global.cxx
index fee17d7c9..8306399eb 100644
--- a/src/lib/curl/Global.cxx
+++ b/src/lib/curl/Global.cxx
@@ -84,11 +84,8 @@ CurlGlobal::CurlGlobal(EventLoop &_loop)
 	:defer_read_info(_loop, BIND_THIS_METHOD(ReadInfo)),
 	 timeout_event(_loop, BIND_THIS_METHOD(OnTimeout))
 {
-	multi.SetOption(CURLMOPT_SOCKETFUNCTION, CurlSocket::SocketFunction);
-	multi.SetOption(CURLMOPT_SOCKETDATA, this);
-
-	multi.SetOption(CURLMOPT_TIMERFUNCTION, TimerFunction);
-	multi.SetOption(CURLMOPT_TIMERDATA, this);
+	multi.SetSocketFunction(CurlSocket::SocketFunction, this);
+	multi.SetTimerFunction(TimerFunction, this);
 }
 
 int
diff --git a/src/lib/curl/Multi.hxx b/src/lib/curl/Multi.hxx
index 8d237416d..116037f72 100644
--- a/src/lib/curl/Multi.hxx
+++ b/src/lib/curl/Multi.hxx
@@ -61,6 +61,18 @@ public:
 			throw std::runtime_error(curl_multi_strerror(code));
 	}
 
+	void SetSocketFunction(int (*function)(CURL *easy, curl_socket_t s, int what, void *clientp, void *socketp) noexcept,
+			       void *clientp) {
+		SetOption(CURLMOPT_SOCKETFUNCTION, function);
+		SetOption(CURLMOPT_SOCKETDATA, clientp);
+	}
+
+	void SetTimerFunction(int (*function)(CURLM *multi, long timeout_ms, void *clientp) noexcept,
+			      void *clientp) {
+		SetOption(CURLMOPT_TIMERFUNCTION, function);
+		SetOption(CURLMOPT_TIMERDATA, clientp);
+	}
+
 	void Add(CURL *easy) {
 		auto code = curl_multi_add_handle(handle, easy);
 		if (code != CURLM_OK)