diff --git a/app/assets/javascripts/app/controllers/_application_controller.coffee b/app/assets/javascripts/app/controllers/_application_controller.coffee
index 7dd9a85bf..d73b90ef3 100644
--- a/app/assets/javascripts/app/controllers/_application_controller.coffee
+++ b/app/assets/javascripts/app/controllers/_application_controller.coffee
@@ -590,12 +590,14 @@ class App.ControllerModalNice extends App.Controller
   backdrop: true
   keyboard: true
   large: false
+  small: false
   head: '?'
   container: null
   buttonClass: 'btn--success'
   centerButtons: []
   buttonClose: true
   buttonCancel: false
+  buttonCancelClass: 'btn--text btn--subtle'
   buttonSubmit: true
   headPrefix: ''
   shown: true
@@ -609,7 +611,6 @@ class App.ControllerModalNice extends App.Controller
   className: 'modal fade'
 
   constructor: ->
-    @className += ' modal--large' if @large
     super
 
     # rerender view, e. g. on langauge change
@@ -631,15 +632,16 @@ class App.ControllerModalNice extends App.Controller
     else
       content = @content()
     modal = $(App.view('modal')
-      head:          @head
-      headPrefix:    @headPrefix
-      message:       @message
-      detail:        @detail
-      buttonClose:   @buttonClose
-      buttonCancel:  @buttonCancel
-      buttonSubmit:  @buttonSubmit
-      buttonClass:   @buttonClass
-      centerButtons: @centerButtons
+      head:              @head
+      headPrefix:        @headPrefix
+      message:           @message
+      detail:            @detail
+      buttonClose:       @buttonClose
+      buttonCancel:      @buttonCancel
+      buttonCancelClass: @buttonCancelClass
+      buttonSubmit:      @buttonSubmit
+      buttonClass:       @buttonClass
+      centerButtons:     @centerButtons
     )
     modal.find('.modal-body').html content
     if !@initRenderingDone
@@ -662,6 +664,10 @@ class App.ControllerModalNice extends App.Controller
 
     if @container
       @el.addClass('modal--local')
+    if @large
+      @el.addClass('modal--large')
+    if @small
+      @el.addClass('modal--small')
 
     @el.modal
       keyboard:  @keyboard
diff --git a/app/assets/javascripts/app/controllers/ticket_zoom.coffee b/app/assets/javascripts/app/controllers/ticket_zoom.coffee
index 961e66824..0ae59037f 100644
--- a/app/assets/javascripts/app/controllers/ticket_zoom.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_zoom.coffee
@@ -571,10 +571,19 @@ class App.TicketZoom extends App.Controller
     # check if attachment exists but no body
     attachmentCount = @$('.article-add .textBubble .attachments .attachment').length
     if !articleParams['body'] && attachmentCount > 0
-      if !confirm( App.i18n.translateContent('Please fill also some text in!') )
-        @formEnable(e)
-        @autosaveStart()
-        return
+      new App.ControllerModalNice(
+        head: 'Text missing'
+        buttonCancel: 'Cancel'
+        buttonCancelClass: 'btn--danger'
+        buttonSubmit: false
+        message: 'Please fill also some text in!'
+        shown: true
+        small: true
+        container: @el.closest('.content')
+      )
+      @formEnable(e)
+      @autosaveStart()
+      return
 
     if articleParams['body']
       articleParams.from         = @Session.get().displayName()
diff --git a/app/assets/javascripts/app/views/modal.jst.eco b/app/assets/javascripts/app/views/modal.jst.eco
index f7def8931..db7be63ab 100644
--- a/app/assets/javascripts/app/views/modal.jst.eco
+++ b/app/assets/javascripts/app/views/modal.jst.eco
@@ -15,7 +15,7 @@
       <div class="modal-footer">
   <% if @buttonCancel: %>
         <div class="modal-leftFooter">
-          <a class="btn btn--text btn--subtle js-cancel align-left" href="#/"><%- @T(@buttonCancel) %></a>
+          <a class="btn <%= @buttonCancelClass %> js-cancel align-left" href="#/"><%- @T(@buttonCancel) %></a>
         </div>
   <% end %>
   <% for button in @centerButtons: %>
diff --git a/app/assets/stylesheets/zammad.scss b/app/assets/stylesheets/zammad.scss
index 937aa1f59..493c25ebb 100644
--- a/app/assets/stylesheets/zammad.scss
+++ b/app/assets/stylesheets/zammad.scss
@@ -5255,7 +5255,7 @@ footer {
     display: flex;
     align-items: center;
     justify-content: center;
-    
+
     svg {
       fill: white;
     }
@@ -5275,6 +5275,9 @@ footer {
 .modal--large .modal-dialog {
   max-width: 740px;
 }
+.modal--small .modal-dialog {
+  max-width: 440px;
+}
 .modal-dialog.wizard {
   max-width: 460px;
 }