diff --git a/src/common/config/CommonConfig.cpp b/src/common/config/CommonConfig.cpp
index 55bb0a49..b0b716c1 100644
--- a/src/common/config/CommonConfig.cpp
+++ b/src/common/config/CommonConfig.cpp
@@ -355,6 +355,8 @@ void xmrig::CommonConfig::parseJSON(const rapidjson::Value &json)
     if (api.IsObject() && api.HasMember("port")) {
         m_upgrade = true;
         m_http.load(api);
+        m_http.setEnabled(Json::getUint(api, "port") > 0);
+        m_http.setHost("0.0.0.0");
     }
     else {
         m_http.load(json["http"]);
diff --git a/src/common/interfaces/IConfig.h b/src/common/interfaces/IConfig.h
index c897ee37..071b3478 100644
--- a/src/common/interfaces/IConfig.h
+++ b/src/common/interfaces/IConfig.h
@@ -152,8 +152,6 @@ public:
     virtual void getJSON(rapidjson::Document &doc) const   = 0;
     virtual void parseJSON(const rapidjson::Value &json)   = 0;
     virtual void setFileName(const char *fileName)         = 0;
-
-    static IConfig *create();
 };