diff --git a/quickfixj-core/src/main/java/quickfix/MessageQueue.java b/quickfixj-core/src/main/java/quickfix/MessageQueue.java
index 79e4e16ee8..8f48cc7624 100644
--- a/quickfixj-core/src/main/java/quickfix/MessageQueue.java
+++ b/quickfixj-core/src/main/java/quickfix/MessageQueue.java
@@ -24,7 +24,7 @@
  *
  * @see quickfix.Session
  */
-interface MessageQueue {
+public interface MessageQueue {
 
     /**
      * Enqueue a message.