diff --git a/ng2-components/ng2-activiti-tasklist/src/components/activiti-people-search.component.ts b/ng2-components/ng2-activiti-tasklist/src/components/activiti-people-search.component.ts
index a06b06cb55..0305aef787 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/activiti-people-search.component.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/components/activiti-people-search.component.ts
@@ -59,7 +59,9 @@ export class ActivitiPeopleSearch implements OnInit, AfterViewInit {
             .valueChanges
             .debounceTime(200)
             .subscribe((event) => {
-                this.onSearch.emit(event);
+                if (event) {
+                    this.onSearch.emit(event);
+                }
             });
     }
 
@@ -93,7 +95,11 @@ export class ActivitiPeopleSearch implements OnInit, AfterViewInit {
 
     getDisplayUser(user: User): string {
         let firstName = user.firstName && user.firstName !== 'null' ? user.firstName : 'N/A';
-        let lastName =  user.lastName && user.lastName !== 'null' ? user.lastName : 'N/A';
+        let lastName = user.lastName && user.lastName !== 'null' ? user.lastName : 'N/A';
         return firstName + ' - ' + lastName;
     }
+
+    cleanSearch() {
+        this.searchUser.reset();
+    }
 }
diff --git a/ng2-components/ng2-activiti-tasklist/src/components/activiti-people.component.html b/ng2-components/ng2-activiti-tasklist/src/components/activiti-people.component.html
index e11aa7d557..1796ca2643 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/activiti-people.component.html
+++ b/ng2-components/ng2-activiti-tasklist/src/components/activiti-people.component.html
@@ -25,11 +25,11 @@
         <activiti-people-search (onSearch)="searchUser($event)"
                                 (onRowClicked)="involveUser($event)"
                                 [results]="peopleSearch$"
-                                [iconImageUrl]="iconImageUrl">
+                                [iconImageUrl]="iconImageUrl" #activitipeoplesearch>
         </activiti-people-search>
     </div>
     <div class="mdl-dialog__actions">
-        <button type="button" id="close-people-dialog" (click)="cancel()" class="mdl-button close">
+        <button type="button" id="close-people-dialog" (click)="activitipeoplesearch.cleanSearch();cancel()" class="mdl-button close">
             {{'PEOPLE.DIALOG_CLOSE' | translate }}
         </button>
     </div>