diff --git a/src/app/ngx-editor/ngx-editor.component.html b/src/app/ngx-editor/ngx-editor.component.html
index 6438dcf8..cc8159ab 100644
--- a/src/app/ngx-editor/ngx-editor.component.html
+++ b/src/app/ngx-editor/ngx-editor.component.html
@@ -33,7 +33,7 @@
       <button (click)="executeCommand('insertOrderedList')" title="Ordered List"><i class="fa fa-list-ol" aria-hidden="true"></i></button>
     </div>
   </div>
-  <div class="textarea" [attr.contenteditable]="editable || config['editable']" [attr.placeholder]="placeholder || config['placeholder']"
+  <div class="textarea" [attr.contenteditable]="getBooleanProperty('editable')" [attr.placeholder]="placeholder || config['placeholder']"
     (input)="html = $event.target.innerHTML; htmlContentChange($event.target.innerHTML)" [attr.translate]="translate || config['translate']"
-    [attr.spellcheck]="config['spellcheck']"></div>
+    [attr.spellcheck]="getBooleanProperty('spellcheck')"></div>
 </div>
\ No newline at end of file
diff --git a/src/app/ngx-editor/ngx-editor.component.ts b/src/app/ngx-editor/ngx-editor.component.ts
index 9dd52d0c..99fe6f27 100644
--- a/src/app/ngx-editor/ngx-editor.component.ts
+++ b/src/app/ngx-editor/ngx-editor.component.ts
@@ -79,17 +79,22 @@ export class NgxEditorComponent implements OnInit {
   }
 
   /*
-   * ngOnInit
+   * return values for attributes that accepts boolean
    */
-  ngOnInit() {
-    if (this.spellcheck === false) {
-      this.config['spellcheck'] = false;
+  getBooleanProperty(value) {
+    if (this[value] === false) {
+      return false;
     }
-
-    if (this.editable === false) {
-      this.config['editable'] = false;
+    if (this[value] === undefined) {
+      return this.config[value];
     }
+    return true;
+  }
 
+  /*
+   * ngOnInit
+   */
+  ngOnInit() {
     this.element.nativeElement.getElementsByClassName('textarea')[0].innerHTML = this.html || '';
   }