diff --git a/app/javascript/src/javascripts/uploads.js b/app/javascript/src/javascripts/uploads.js
index 8515a8dc1..4d398d897 100644
--- a/app/javascript/src/javascripts/uploads.js
+++ b/app/javascript/src/javascripts/uploads.js
@@ -54,8 +54,8 @@ Upload.initialize_submit = function() {
 }
 
 Upload.initialize_iqdb_source = function() {
-  if (/^https?:\/\//.test($("#upload_source,#post_source").val())) {
-    $.get("/iqdb_queries", {"url": $("#upload_source,#post_source").val()}).done(function(html) {$("#iqdb-similar").html(html)});
+  if (/^https?:\/\//.test($("#upload_source").val())) {
+    $.get("/iqdb_queries", {"url": $("#upload_source").val()}).done(function(html) {$("#iqdb-similar").html(html)});
   }
 }