diff --git a/src/components/overlays/Tooltip.vue b/src/components/overlays/Tooltip.vue
index a7a41ebc..c884d12a 100644
--- a/src/components/overlays/Tooltip.vue
+++ b/src/components/overlays/Tooltip.vue
@@ -25,6 +25,7 @@
 </template>
 
 <script>
+import { ref } from 'vue'
 import { usePopper } from '../../utils'
 
 export default {