diff --git a/src/app/pages/answers/answers.component.ts b/src/app/pages/answers/answers.component.ts
index a17b1a15..97071057 100644
--- a/src/app/pages/answers/answers.component.ts
+++ b/src/app/pages/answers/answers.component.ts
@@ -1,7 +1,9 @@
-import {ChangeDetectorRef, Component, OnInit} from '@angular/core';
+import {ChangeDetectorRef, Component, Inject, OnInit} from '@angular/core';
 import {BaseComponent} from '../base-page/base.component';
 import {ConfigService} from '../../config.service';
 
+import {DOCUMENT} from '@angular/common';
+
 @Component({
     selector: 'framadate-answers',
     templateUrl: './answers.component.html',
@@ -12,6 +14,7 @@ export class AnswersComponent extends BaseComponent implements OnInit {
     private answerList = [];
 
     constructor(config: ConfigService,
+                @Inject(DOCUMENT) private document: any,
                 private cd: ChangeDetectorRef) {
         super(config);
         this.answerList = this.config.answers;
@@ -32,8 +35,11 @@ export class AnswersComponent extends BaseComponent implements OnInit {
                 text: ''
             });
         this.cd.detectChanges(); // to refresh the view before focusing on the new input
-        const AnswersDomToFocus = document.querySelectorAll('.answers .answer');
-        AnswersDomToFocus[AnswersDomToFocus.length - 1].focus();
+        const AnswersDomToFocus = this.document.querySelectorAll('.answers .answer');
+        const dom = AnswersDomToFocus[AnswersDomToFocus.length - 1];
+        if (dom.focus) {
+            dom.focus();
+        }
     }
 
     // add a new answer on the press of ENTER in an input