diff --git a/Variant-ADC.md b/Variant-ADC.md
index b9e153d..4d55fe3 100644
--- a/Variant-ADC.md
+++ b/Variant-ADC.md
@@ -11,7 +11,7 @@ This variant can be used with analog inputs like potentiometers, joysticks or th
 * If you don’t need steering, set input1_type to 0 in order to disable the input or go through the auto-calibration procedure
 * 100k Pull down resistors connected to ground are recommended to prevent issues when inputs are floating (wire is cut or disconnected) triggering ADC protection
 
-⚠ Red wire from sensor cable delivers 15v !!!
+⚠️ Red wire from sensor cable delivers 15v !!!
 Use 3.3v from programming port or a voltage regulator.
 
 ## Calibration: