diff --git a/arduino/Betas/RGB_V1.1.1/main/data/index.html b/arduino/Betas/RGB_V1.1.1/main/data/index.html
index defcea7..1109573 100644
--- a/arduino/Betas/RGB_V1.1.1/main/data/index.html
+++ b/arduino/Betas/RGB_V1.1.1/main/data/index.html
@@ -130,7 +130,7 @@ function UpdateInfo()
document.getElementById('debug_log_control').value==arr[3];
document.getElementById('BAT_VOLTAGE').innerHTML=arr[4];
- if(document.getElementById('log_control').value=="1"){
+ if(document.getElementById('log_control').value=="1" && arr[5]!=""){
document.getElementById('Shaft_Velocity').innerHTML =arr[5]+"
"+document.getElementById('Shaft_Velocity').innerHTML;
document.getElementById('motor_voltage_q').innerHTML=arr[6]+"
"+document.getElementById('motor_voltage_q').innerHTML;
document.getElementById('target_velocity').innerHTML=arr[7]+"
"+document.getElementById('target_velocity').innerHTML;