diff --git a/index.js b/index.js
index 30c4d75492330e8781981655dc5a85ac1d0d8339..0644c763e26115ff1cc307256ce6e36d6e410944 100644
--- a/index.js
+++ b/index.js
@@ -34,7 +34,7 @@ app.post('/post', function(req, res){
 
       var body = {
         response_type: "in_channel",
-        pretext: icon_url,
+        image_url: icon_url,
         text: "Temperature: " + first_url + "\n" + "Condition: " + weatherC
       };