diff --git a/ino/motor_encoder_poc/motor_encoder_poc.ino b/ino/motor_encoder_poc/motor_encoder_poc.ino
index 14fe68c..8f3ff49 100644
--- a/ino/motor_encoder_poc/motor_encoder_poc.ino
+++ b/ino/motor_encoder_poc/motor_encoder_poc.ino
@@ -119,7 +119,7 @@ void loop() {
     total = millis() - start;
     Serial.println(total);
     rpm = calculateRPM(total) * (float) (rotations + 1);
-    fps = calculateFPS(total, 18);
+    fps = calculateFPS(total, frames);
     Serial.print("RPM:    ");
     Serial.println(rpm);
     Serial.print("FPS:    ");