diff --git a/types/vue.d.ts b/types/vue.d.ts
index 2b025150bc7..1fc4e69fa31 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -72,7 +72,7 @@ export interface VueConstructor<V extends Vue = Vue> {
 
   extend<PropNames extends string = never>(definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
   extend<Props>(definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
-  extend<Data, Methods, Computed, PropNames extends string>(options?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
+  extend<Data, Methods, Computed, PropNames extends string = never>(options?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
   extend<Data, Methods, Computed, Props>(options?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
   extend(options?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
 
@@ -94,7 +94,7 @@ export interface VueConstructor<V extends Vue = Vue> {
   component<Data, Methods, Computed, Props>(id: string, definition: AsyncComponent<Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
   component<PropNames extends string>(id: string, definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
   component<Props>(id: string, definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
-  component<Data, Methods, Computed, PropNames extends string>(id: string, definition?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
+  component<Data, Methods, Computed, PropNames extends string = never>(id: string, definition?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
   component<Data, Methods, Computed, Props>(id: string, definition?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
   component(id: string, definition?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;