diff --git a/components/lib/autocomplete/AutoComplete.d.ts b/components/lib/autocomplete/AutoComplete.d.ts
index b1afd0a82..d1da1f4c0 100755
--- a/components/lib/autocomplete/AutoComplete.d.ts
+++ b/components/lib/autocomplete/AutoComplete.d.ts
@@ -171,6 +171,10 @@ export interface AutoCompletePassThroughOptions {
      * @see {@link BaseComponent.ComponentHooks}
      */
     hooks?: ComponentHooks;
+    /**
+     * Used to control Vue Transition API.
+     */
+    transition?: any;
 }
 
 /**
diff --git a/components/lib/autocomplete/AutoComplete.vue b/components/lib/autocomplete/AutoComplete.vue
index 28858648b..637bfbd4a 100755
--- a/components/lib/autocomplete/AutoComplete.vue
+++ b/components/lib/autocomplete/AutoComplete.vue
@@ -114,7 +114,7 @@
             {{ searchResultMessageText }}
         </span>
         <Portal :appendTo="appendTo">
-            <transition name="p-connected-overlay" @enter="onOverlayEnter" @after-enter="onOverlayAfterEnter" @leave="onOverlayLeave" @after-leave="onOverlayAfterLeave">
+            <transition name="p-connected-overlay" @enter="onOverlayEnter" @after-enter="onOverlayAfterEnter" @leave="onOverlayLeave" @after-leave="onOverlayAfterLeave" v-bind="ptm('transition')">
                 <div
                     v-if="overlayVisible"
                     :ref="overlayRef"