diff --git a/admin/src/components/ContributionMessages/ContributionMessagesFormular.vue b/admin/src/components/ContributionMessages/ContributionMessagesFormular.vue
index 1582bd542..a0e790abe 100644
--- a/admin/src/components/ContributionMessages/ContributionMessagesFormular.vue
+++ b/admin/src/components/ContributionMessages/ContributionMessagesFormular.vue
@@ -14,7 +14,9 @@
             <b-button type="reset" variant="danger">{{ $t('form.cancel') }}</b-button>
           </b-col>
           <b-col class="text-right">
-            <b-button type="submit" variant="primary">{{ $t('form.submit') }}</b-button>
+            <b-button type="submit" variant="primary" :disabled="disabled">
+              {{ $t('form.submit') }}
+            </b-button>
           </b-col>
         </b-row>
       </b-form>
@@ -63,5 +65,13 @@ export default {
       this.form.text = ''
     },
   },
+  computed: {
+    disabled() {
+      if (this.form.text !== '') {
+        return false
+      }
+      return true
+    },
+  },
 }
 </script>
diff --git a/frontend/src/components/ContributionMessages/ContributionMessagesFormular.vue b/frontend/src/components/ContributionMessages/ContributionMessagesFormular.vue
index 52240afa0..e3f9fd5e7 100644
--- a/frontend/src/components/ContributionMessages/ContributionMessagesFormular.vue
+++ b/frontend/src/components/ContributionMessages/ContributionMessagesFormular.vue
@@ -14,7 +14,9 @@
             <b-button type="reset" variant="danger">{{ $t('form.cancel') }}</b-button>
           </b-col>
           <b-col class="text-right">
-            <b-button type="submit" variant="primary">{{ $t('form.reply') }}</b-button>
+            <b-button type="submit" variant="primary" :disabled="disabled">
+              {{ $t('form.reply') }}
+            </b-button>
           </b-col>
         </b-row>
       </b-form>
@@ -63,5 +65,13 @@ export default {
       this.form.text = ''
     },
   },
+  computed: {
+    disabled() {
+      if (this.form.text !== '') {
+        return false
+      }
+      return true
+    },
+  },
 }
 </script>