diff --git a/proxy/src/main/java/net/md_5/bungee/BungeeCord.java b/proxy/src/main/java/net/md_5/bungee/BungeeCord.java
index f80c0486..0e5c25e9 100644
--- a/proxy/src/main/java/net/md_5/bungee/BungeeCord.java
+++ b/proxy/src/main/java/net/md_5/bungee/BungeeCord.java
@@ -256,7 +256,7 @@ public class BungeeCord extends ProxyServer
     public void start() throws Exception
     {
         System.setProperty( "io.netty.selectorAutoRebuildThreshold", "0" ); // Seems to cause Bungee to stop accepting connections
-        if ( System.getProperty( "io.netty.leakDetectionLevel" ) == null )
+        if ( System.getProperty( "io.netty.leakDetectionLevel" ) == null && System.getProperty( "io.netty.leakDetection.level" ) == null )
         {
             ResourceLeakDetector.setLevel( ResourceLeakDetector.Level.DISABLED ); // Eats performance
         }