diff --git a/pagure/templates/issue.html b/pagure/templates/issue.html
index a911dfa..30f6a2c 100644
--- a/pagure/templates/issue.html
+++ b/pagure/templates/issue.html
@@ -352,6 +352,7 @@ source.addEventListener('message', function(e) {
 
 {% if authenticated and form %}
 function try_async_comment(form) {
+  $(form).find('input[type="submit"]').attr("disabled", "disabled");
   var _data = $(form).serialize();
   var btn = $(document.activeElement);
   if (btn[0].name == 'drop_comment'){
diff --git a/pagure/templates/pull_request.html b/pagure/templates/pull_request.html
index 9249b3d..7f816ea 100644
--- a/pagure/templates/pull_request.html
+++ b/pagure/templates/pull_request.html
@@ -774,6 +774,7 @@ $('#assignee').selectize({
 
 function try_async_comment(form, inline) {
   $(form).off('submit');
+  $(form).find('input[type="submit"]').attr("disabled", "disabled");
   var _data = $(form).serialize();
   var btn = $(document.activeElement);
   if (btn[0].name == 'drop_comment'){