diff --git a/docs/north_data.md b/docs/north_data.md
index daf4d0c..b506bc1 100644
--- a/docs/north_data.md
+++ b/docs/north_data.md
@@ -751,7 +751,7 @@
 
 ```text
     {
-        "key":"curren",
+        "key":"current",
         "name":"电流",
         "unit":3,
         "label":"A",