diff --git a/web/src/views/Ticket.vue b/web/src/views/Ticket.vue
index 4921a74..cbb8099 100644
--- a/web/src/views/Ticket.vue
+++ b/web/src/views/Ticket.vue
@@ -35,7 +35,7 @@
                                     <div>
                                         <textarea placeholder="reply mail..." v-model="newMail" class="form-control">
                                         </textarea>
-                                        <AsyncButton class="btn btn-primary float-right" :task="sendMailAndClear">
+                                        <AsyncButton class="btn btn-primary float-right" :task="sendMailAndClear" :disabled="!newMail">
                                             <font-awesome-icon icon="envelope"/>
                                             Send Mail
                                         </AsyncButton>