diff --git a/packages/components/blockquote-tabs/src/BlockquoteTabs.js b/packages/components/blockquote-tabs/src/BlockquoteTabs.js
index ef868fe..012ef70 100644
--- a/packages/components/blockquote-tabs/src/BlockquoteTabs.js
+++ b/packages/components/blockquote-tabs/src/BlockquoteTabs.js
@@ -123,6 +123,8 @@ export class BlockquoteTabs extends BlockquoteMixinSlotContent(LitElement) {
       },
       skipInitial: true,
     });
+
+    this.addEventListener('slotchanges', this._onSlotChanges);
   }
 
   _selectedIsInRange(idx) {
@@ -145,11 +147,6 @@ export class BlockquoteTabs extends BlockquoteMixinSlotContent(LitElement) {
     return this._tabList.length;
   }
 
-  connectedCallback() {
-    super.connectedCallback?.();
-    this.shadowRoot?.addEventListener('slotchanges', this._onSlotChanges);
-  }
-
   firstUpdated(props) {
     super.firstUpdated && super.firstUpdated(props);
     const tabSlot = this.shadowRoot?.querySelector('[name="tab"]');
diff --git a/packages/components/blockquote-tabs/src/tab/BlockquoteTab.js b/packages/components/blockquote-tabs/src/tab/BlockquoteTab.js
index 7428fb0..ed9fabd 100644
--- a/packages/components/blockquote-tabs/src/tab/BlockquoteTab.js
+++ b/packages/components/blockquote-tabs/src/tab/BlockquoteTab.js
@@ -30,6 +30,8 @@ export class BlockquoteTab extends BlockquoteMixinSlotContent(LitElement) {
       slot: 'tab',
       tabindex: 0,
     };
+
+    this.addEventListener('slotchanges', this._onSlotChanges);
   }
 
   static get styles() {
@@ -38,8 +40,6 @@ export class BlockquoteTab extends BlockquoteMixinSlotContent(LitElement) {
 
   connectedCallback() {
     super.connectedCallback?.();
-    this.shadowRoot?.addEventListener('slotchanges', this._onSlotChanges);
-
     this.__setArrayAttibute(this.globalRootAttributes);
   }