diff --git a/.changeset/rotten-dancers-breathe.md b/.changeset/rotten-dancers-breathe.md
new file mode 100644
index 000000000..750feb642
--- /dev/null
+++ b/.changeset/rotten-dancers-breathe.md
@@ -0,0 +1,5 @@
+---
+'@lion/tabs': patch
+---
+
+The store of invoker and content slottables was not properly cleared before repopulating, on slotchange event. This would cause duplicate entries.
diff --git a/packages/tabs/src/LionTabs.js b/packages/tabs/src/LionTabs.js
index a55fc1c69..091a2a090 100644
--- a/packages/tabs/src/LionTabs.js
+++ b/packages/tabs/src/LionTabs.js
@@ -229,6 +229,7 @@ export class LionTabs extends LitElement {
     this.__store.forEach(entry => {
       cleanButton(entry);
     });
+    this.__store = [];
   }
 
   /**