diff --git a/pcbnew/router/pns_node.cpp b/pcbnew/router/pns_node.cpp
index a074d5b74f..a3b2160cad 100644
--- a/pcbnew/router/pns_node.cpp
+++ b/pcbnew/router/pns_node.cpp
@@ -1444,9 +1444,12 @@ ITEM *NODE::FindItemByParent( const BOARD_CONNECTED_ITEM* aParent )
 {
     INDEX::NET_ITEMS_LIST* l_cur = m_index->GetItemsForNet( aParent->GetNetCode() );
 
-    for( ITEM*item : *l_cur )
-        if( item->Parent() == aParent )
-            return item;
+    if( l_cur )
+    {
+        for( ITEM* item : *l_cur )
+            if( item->Parent() == aParent )
+                return item;
+    }
 
     return NULL;
 }