diff --git a/src/main.cpp b/src/main.cpp
index b1c62d3..6c9fb44 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -21,6 +21,23 @@ struct wifi_config_struct
 
 wifi_config_struct wifi_config;
 
+struct mqtt_topic_struct
+{
+  char title[32];
+  char topic[64];
+  char unit[16];
+};
+
+mqtt_topic_struct mqtt_topics;
+
+struct mqtt_config_struct
+{
+  char server[24];
+  unsigned int port;
+  char clientID[16];
+};
+
+mqtt_config_struct mqtt_config;
 
 // Load configuration file from SD card
 void loadconfig(const char* filename) {
@@ -30,20 +47,28 @@ void loadconfig(const char* filename) {
   StaticJsonDocument<512> jsonBuffer;
 
   DeserializationError error = deserializeJson(jsonBuffer, file);
+
+  file.close();
+
   if (error) {
     Serial.print(F("Unable to deserialize JSON config file."));
     Serial.println(error.f_str());
-  } else {
-      strcpy(wifi_config.ssid, jsonBuffer["wifi"]["ssid"] | "defualtSSID");
-      strcpy(wifi_config.password, jsonBuffer["wifi"]["password"] | "");
-      strcpy(wifi_config.ip, jsonBuffer["wifi"]["ip"] | "");
-      strcpy(wifi_config.mask, jsonBuffer["wifi"]["mask"] | "");
-      strcpy(wifi_config.gateway, jsonBuffer["wifi"]["gateway"] | "");
-      strcpy(wifi_config.dns1, jsonBuffer["wifi"]["dns1"] | "");
-      strcpy(wifi_config.dns2, jsonBuffer["wifi"]["dns2"] | "");
+    return;
   }
 
-  file.close();
+  JsonObject wifi = jsonBuffer["wifi"];
+  strcpy(wifi_config.ssid, wifi["ssid"] | "defualtSSID");
+  strcpy(wifi_config.password, wifi["password"] | "");
+  strcpy(wifi_config.ip, wifi["ip"] | "");
+  strcpy(wifi_config.mask, wifi["mask"] | "");
+  strcpy(wifi_config.gateway, wifi["gateway"] | "");
+  strcpy(wifi_config.dns1, wifi["dns1"] | "");
+  strcpy(wifi_config.dns2, wifi["dns2"] | "");
+
+  JsonObject mqtt = jsonBuffer["mqtt"];
+  strcpy(mqtt_config.server, mqtt["server"] | "");
+  strcpy(mqtt_config.clientID, mqtt["clientID"] | "");
+  mqtt_config.port = mqtt["port"];
 
 }