From 14d3a182d9611ca7027c35a0b95708ee05c36b33 Mon Sep 17 00:00:00 2001
From: SquidDev <bonzoweb@hotmail.co.uk>
Date: Tue, 2 May 2017 13:32:53 +0100
Subject: [PATCH] Fix NPE when clearing disk label

---
 src/main/java/dan200/computercraft/shared/util/StringUtil.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main/java/dan200/computercraft/shared/util/StringUtil.java b/src/main/java/dan200/computercraft/shared/util/StringUtil.java
index 2f6da8bb3..d1522c388 100644
--- a/src/main/java/dan200/computercraft/shared/util/StringUtil.java
+++ b/src/main/java/dan200/computercraft/shared/util/StringUtil.java
@@ -4,6 +4,8 @@ public class StringUtil
 {
     public static String normaliseLabel( String label )
     {
+        if( label == null ) return null;
+
         int length = Math.min( 32, label.length() );
         StringBuilder builder = new StringBuilder( length );
         for (int i = 0; i < length; i++)