diff --git a/README.md b/README.md
index 369a5a4..cb426ef 100644
--- a/README.md
+++ b/README.md
@@ -179,7 +179,7 @@ pointerOptions: {
 
 Used to refresh Gauge value and max value
 
-`refresh(val, max, min)`
+`refresh(val, max, min, label)`
 
 - `val` : The Gauge value (required)
 - `max` : The Gauge Max value (optional)