diff --git a/autoplant_pio/src/autoplant.cpp b/autoplant_pio/src/autoplant.cpp
index 9774627..79ac15e 100644
--- a/autoplant_pio/src/autoplant.cpp
+++ b/autoplant_pio/src/autoplant.cpp
@@ -103,7 +103,7 @@ void connect_wifi() {
  * @return	void
  */
 void connect_mqtt() {
-	int delay = 1000;
+	int backoff_delay = 1000;
 	while(true) {
 		Serial.print("MQTT: ");
 		mqtt = PubSubClient();
@@ -142,9 +142,9 @@ void connect_mqtt() {
 		int error_code = mqtt.state();
 		Serial.println("failed, error code "+String(error_code));
 		
-		delay(delay);
-		delay += 1000;
-		if(delay > 60 * 1000) delay = 60 * 1000;
+		delay(backoff_delay);
+		backoff_delay += 1000;
+		if(backoff_delay > 60 * 1000) backoff_delay = 60 * 1000;
 	}
 	
 	Serial.println("ok");