diff --git a/src/main/resources/static/js/datatransfer.js b/src/main/resources/static/js/datatransfer.js
index 1cb289c..9641794 100644
--- a/src/main/resources/static/js/datatransfer.js
+++ b/src/main/resources/static/js/datatransfer.js
@@ -228,6 +228,9 @@ function fillHeaderTable(headers){
     var innerHTML = buildHeaderMapHtml(headers);
     $('#headerMapTable').html(innerHTML);
     $('.tableField').change(function(){setDataModified()});
+    $('.btn-hashmap').click(function(){
+        $(this).closest('tr').remove();
+    })
 }
 
 function buildHeaderMapHtml(headers){
diff --git a/target/classes/static/js/datatransfer.js b/target/classes/static/js/datatransfer.js
index 1cb289c..9641794 100644
--- a/target/classes/static/js/datatransfer.js
+++ b/target/classes/static/js/datatransfer.js
@@ -228,6 +228,9 @@ function fillHeaderTable(headers){
     var innerHTML = buildHeaderMapHtml(headers);
     $('#headerMapTable').html(innerHTML);
     $('.tableField').change(function(){setDataModified()});
+    $('.btn-hashmap').click(function(){
+        $(this).closest('tr').remove();
+    })
 }
 
 function buildHeaderMapHtml(headers){