From f3ddb0bfd1e04d8f8431c5c8bc81a49652407926 Mon Sep 17 00:00:00 2001
From: Adam Bradley <adambradley25@gmail.com>
Date: Thu, 21 Apr 2016 11:15:20 -0500
Subject: [PATCH] fix(nav): tabs should not dereg child navs

Closes #6267
---
 ionic/components/nav/nav-controller.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ionic/components/nav/nav-controller.ts b/ionic/components/nav/nav-controller.ts
index 4ad642ce1b..56b172ba83 100644
--- a/ionic/components/nav/nav-controller.ts
+++ b/ionic/components/nav/nav-controller.ts
@@ -1399,7 +1399,7 @@ export class NavController extends Ion {
     }
     this._views.length = 0;
 
-    if (this.parent) {
+    if (this.parent && this.parent.unregisterChildNav) {
       this.parent.unregisterChildNav(this);
     }
   }