diff --git a/atc/hua-e3372h_320/README.md b/atc/hua-e3372h_320/README.md
index 93060b6..e39a9dd 100644
--- a/atc/hua-e3372h_320/README.md
+++ b/atc/hua-e3372h_320/README.md
@@ -13,7 +13,7 @@ Add message `"55534243123456780000000000000011063000000000010000000000000000"` a
                                  "t_vendor": 4817,
                                  "t_product": [ 5339, 5340 ],
                                  "mode": "HuaweiAlt",
-                                 "msg": [  xx ]
+                                 "msg": [ xx ]
                     }
              }
 ```