diff --git a/src/main/java/net/logstash/logback/appender/AbstractLogstashTcpSocketAppender.java b/src/main/java/net/logstash/logback/appender/AbstractLogstashTcpSocketAppender.java
index 3909b972..15e269ef 100644
--- a/src/main/java/net/logstash/logback/appender/AbstractLogstashTcpSocketAppender.java
+++ b/src/main/java/net/logstash/logback/appender/AbstractLogstashTcpSocketAppender.java
@@ -1106,7 +1106,7 @@ public void addDestination(final String destination) throws IllegalArgumentExcep
 
         List<InetSocketAddress> parsedDestinations = DestinationParser.parse(destination, DEFAULT_PORT);
 
-        addDestinations(parsedDestinations.toArray(new InetSocketAddress[parsedDestinations.size()]));
+        addDestinations(parsedDestinations.toArray(new InetSocketAddress[0]));
     }
 
     /**
diff --git a/src/main/java/net/logstash/logback/appender/AsyncDisruptorAppender.java b/src/main/java/net/logstash/logback/appender/AsyncDisruptorAppender.java
index 3ce19aed..b433cc07 100644
--- a/src/main/java/net/logstash/logback/appender/AsyncDisruptorAppender.java
+++ b/src/main/java/net/logstash/logback/appender/AsyncDisruptorAppender.java
@@ -474,7 +474,7 @@ protected void prepareForDeferredProcessing(Event event) {
 
     protected String calculateThreadName() {
         List<Object> threadNameFormatParams = getThreadNameFormatParams();
-        return String.format(threadNameFormat, threadNameFormatParams.toArray(new Object[threadNameFormatParams.size()]));
+        return String.format(threadNameFormat, threadNameFormatParams.toArray());
     }
 
     protected List<Object> getThreadNameFormatParams() {