diff -Naru libyui-2.21.1-orig/src/TreeItem.h libyui-2.21.1/src/TreeItem.h
--- libyui-2.21.1-orig/src/TreeItem.h	2012-07-30 14:22:00.833938743 +0200
+++ libyui-2.21.1/src/TreeItem.h	2012-07-30 14:22:59.310288616 +0200
@@ -251,7 +251,7 @@
 	    // Insert as first child
 
 	    newChild->setNext( firstChild() );
-	    setFirstChild( newChild );
+	    this->setFirstChild( newChild );
 	}
 	else
 	{