diff --git a/src/common/api/Httpd.cpp b/src/common/api/Httpd.cpp
index eb6a4ba6..9bc04af2 100644
--- a/src/common/api/Httpd.cpp
+++ b/src/common/api/Httpd.cpp
@@ -126,19 +126,19 @@ void Httpd::run()
 }
 
 
-int Httpd::handler(void *cls, struct MHD_Connection *connection, const char *url, const char *method, const char *version, const char *uploadData, size_t *uploadSize, void **con_cls)
+MHD_Result Httpd::handler(void *cls, struct MHD_Connection *connection, const char *url, const char *method, const char *version, const char *uploadData, size_t *uploadSize, void **con_cls)
 {
     xmrig::HttpRequest req(connection, url, method, uploadData, uploadSize, con_cls);
 
     if (req.method() == xmrig::HttpRequest::Options) {
-        return req.end(MHD_HTTP_OK, nullptr);
+        return static_cast<MHD_Result>(req.end(MHD_HTTP_OK, nullptr));
     }
 
     if (req.method() == xmrig::HttpRequest::Unsupported) {
-        return req.end(MHD_HTTP_METHOD_NOT_ALLOWED, nullptr);
+        return static_cast<MHD_Result>(req.end(MHD_HTTP_METHOD_NOT_ALLOWED, nullptr));
     }
 
-    return static_cast<Httpd*>(cls)->process(req);
+    return static_cast<MHD_Result>(static_cast<Httpd*>(cls)->process(req));
 }
 
 
diff --git a/src/common/api/Httpd.h b/src/common/api/Httpd.h
index adec1d71..e19de1f9 100644
--- a/src/common/api/Httpd.h
+++ b/src/common/api/Httpd.h
@@ -24,7 +24,7 @@
 #ifndef __HTTPD_H__
 #define __HTTPD_H__
 
-
+#include <microhttpd.h>
 #include <uv.h>
 
 
@@ -55,7 +55,7 @@ class Httpd
     int process(xmrig::HttpRequest &req);
     void run();
 
-    static int handler(void *cls, MHD_Connection *connection, const char *url, const char *method, const char *version, const char *uploadData, size_t *uploadSize, void **con_cls);
+    static MHD_Result handler(void *cls, MHD_Connection *connection, const char *url, const char *method, const char *version, const char *uploadData, size_t *uploadSize, void **con_cls);
     static void onTimer(uv_timer_t *handle);
 
     bool m_idle;