diff --git a/src/main.cpp b/src/main.cpp
index 5878373..711f9f4 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -68,9 +68,9 @@ void loadConfig() {
     strncpy(password, doc["password"], sizeof(password)-1);
     password[sizeof(password)-1] = '\0';
   }
-  if (doc["Kp"]) Kp = doc["Kp"].as<double>();
-  if (doc["Ki"]) Ki = doc["Ki"].as<double>();
-  if (doc["Kd"]) Kd = doc["Kd"].as<double>();
+  if (doc["kp"]) Kp = doc["kp"].as<double>();
+  if (doc["ki"]) Ki = doc["ki"].as<double>();
+  if (doc["kd"]) Kd = doc["kd"].as<double>();
   myPID.SetTunings(Kp, Ki, Kd);
   Serial.printf("Config chargée : ssid=%s, kp=%.2f, ki=%.2f, kd=%.2f\n", ssid, Kp, Ki, Kd);
 }