diff --git a/packages/combo-box/src/vaadin-combo-box-data-provider-mixin.js b/packages/combo-box/src/vaadin-combo-box-data-provider-mixin.js
index 28b9d8bef1..3e31f6bd31 100644
--- a/packages/combo-box/src/vaadin-combo-box-data-provider-mixin.js
+++ b/packages/combo-box/src/vaadin-combo-box-data-provider-mixin.js
@@ -261,8 +261,6 @@ export const ComboBoxDataProviderMixin = (superClass) =>
       if (this.items !== undefined && this.dataProvider !== undefined) {
         restoreOldValueCallback();
         throw new Error('Using `items` and `dataProvider` together is not supported');
-      } else if (this.dataProvider && !this.filteredItems) {
-        this.filteredItems = [];
       }
     }