diff --git a/.gitignore b/.gitignore
index 1cb2771..39d9281 100755
--- a/.gitignore
+++ b/.gitignore
@@ -29,3 +29,6 @@ dist
 
 # Docs
 gh-pages
+
+# VScode stop adding .angulardoc.json
+.angulardoc.json
diff --git a/src/ngxerror.directive.ts b/src/ngxerror.directive.ts
index 6b5ae7d..ad2e631 100755
--- a/src/ngxerror.directive.ts
+++ b/src/ngxerror.directive.ts
@@ -70,7 +70,8 @@ export class NgxErrorDirective implements OnInit, OnDestroy, DoCheck {
   }
 
   ngOnDestroy() {
+    this._states.complete();
     this.subscription.unsubscribe();
   }
 
-}
\ No newline at end of file
+}
diff --git a/src/ngxerrors.directive.ts b/src/ngxerrors.directive.ts
index e0b74da..68fe741 100755
--- a/src/ngxerrors.directive.ts
+++ b/src/ngxerrors.directive.ts
@@ -16,7 +16,7 @@ export class NgxErrorsDirective implements OnChanges, OnDestroy, AfterViewInit {
   @Input('ngxErrors')
   controlName: string;
 
-  subject = new BehaviorSubject<ErrorDetails>(null);
+  subject: BehaviorSubject<ErrorDetails>;
 
   control: AbstractControl;
 
@@ -71,10 +71,14 @@ export class NgxErrorsDirective implements OnChanges, OnDestroy, AfterViewInit {
     }
   }
 
+  ngOnInit() {
+    this.subject = new BehaviorSubject<ErrorDetails>(null);
+  }
+
   ngOnChanges() {
     this.control = this.form.control.get(this.controlName);
   }
-  
+
   ngAfterViewInit() {
     setTimeout(() => {
       this.checkStatus();
@@ -83,7 +87,7 @@ export class NgxErrorsDirective implements OnChanges, OnDestroy, AfterViewInit {
   }
 
   ngOnDestroy() {
-    this.subject.unsubscribe();
+    this.subject.complete();
   }
 
-}
\ No newline at end of file
+}