diff --git a/src/assets/index.html b/src/assets/index.html
index f081d2f..920aeeb 100644
--- a/src/assets/index.html
+++ b/src/assets/index.html
@@ -339,10 +339,10 @@
                     <span class="icon">{% inline "external-link.svg" %}</span>
                 </a>
                 <div class="flex-grow-1"></div>
-                <button class="toolbar-item" @click="navigateToItem(-1)" title="Previous Article" :disabled="itemSelected == items[0].id">
+                <button class="toolbar-item" @click="navigateToItem(-1)" title="Previous Article" :disabled="!items.length || itemSelected == items[0].id">
                     <span class="icon">{% inline "chevron-left.svg" %}</span>
                 </button>
-                <button class="toolbar-item" @click="navigateToItem(+1)" title="Next Article" :disabled="itemSelected == items[items.length - 1].id">
+                <button class="toolbar-item" @click="navigateToItem(+1)" title="Next Article" :disabled="!items.length || itemSelected == items[items.length - 1].id">
                     <span class="icon">{% inline "chevron-right.svg" %}</span>
                 </button>
                 <button class="toolbar-item" @click="itemSelected=null" title="Close Article">