diff --git a/artemis-protocols/artemis-stomp-protocol/src/main/java/org/apache/activemq/artemis/core/protocol/stomp/StompFrame.java b/artemis-protocols/artemis-stomp-protocol/src/main/java/org/apache/activemq/artemis/core/protocol/stomp/StompFrame.java
index 27b222b40e..044b2dbd8f 100644
--- a/artemis-protocols/artemis-stomp-protocol/src/main/java/org/apache/activemq/artemis/core/protocol/stomp/StompFrame.java
+++ b/artemis-protocols/artemis-stomp-protocol/src/main/java/org/apache/activemq/artemis/core/protocol/stomp/StompFrame.java
@@ -103,7 +103,7 @@ public class StompFrame {
             return buffer;
          }
 
-         StringBuilder head = new StringBuilder();
+         StringBuilder head = new StringBuilder(512);
          head.append(command);
          head.append(Stomp.NEWLINE);
          // Output the headers.