diff --git a/doc/api.md b/doc/api.md
index 7b89591d7..e27099537 100644
--- a/doc/api.md
+++ b/doc/api.md
@@ -159,7 +159,7 @@ POST /data
    "s":{  
       "bluetooth":{  
          "20:25:64:b7:91:42":-72,
-         "20:25:64:b8:06:38":-81,    
+         "20:25:64:b8:06:38":-81
       },
       "wifi":{  
          "20:25:64:b7:91:40":-73,