diff --git a/src/components/multiselect/MultiSelect.vue b/src/components/multiselect/MultiSelect.vue
index ed8dee373bb..375ff17d615 100644
--- a/src/components/multiselect/MultiSelect.vue
+++ b/src/components/multiselect/MultiSelect.vue
@@ -284,7 +284,7 @@ export default {
             return label;
         },
         onToggleAll(event) {
-            const value = this.allSelected ? [] : this.visibleOptions;
+            const value = this.allSelected ? [] : this.visibleOptions && this.visibleOptions.map(option => this.getOptionValue(option));
 
             this.$emit('input', value);
             this.$emit('change', {originalEvent: event, value: value});
@@ -329,7 +329,7 @@ export default {
                 }
             }
             else {
-                label = this.placeholder || 'p-multiselect';
+                label = this.placeholder || '';
             }
 
             return label;