diff --git a/packages/primevue/src/autocomplete/AutoComplete.vue b/packages/primevue/src/autocomplete/AutoComplete.vue
index b366bf208..28b05c7fd 100755
--- a/packages/primevue/src/autocomplete/AutoComplete.vue
+++ b/packages/primevue/src/autocomplete/AutoComplete.vue
@@ -662,6 +662,8 @@ export default {
                     this.hide();
                 }
             }
+
+            event.preventDefault();
         },
         onEscapeKey(event) {
             this.overlayVisible && this.hide(true);