2 files changed, 2 insertions, 1 deletions
diff --git a/qpid/cpp/src/qpid/broker/MessageAllocator.cpp b/qpid/cpp/src/qpid/broker/MessageAllocator.cpp
index 62d5402b0a..7c70b188ad 100644
--- a/qpid/cpp/src/qpid/broker/MessageAllocator.cpp
+++ b/qpid/cpp/src/qpid/broker/MessageAllocator.cpp
@@ -23,6 +23,7 @@
 
 #include "qpid/broker/Queue.h"
 #include "qpid/broker/MessageAllocator.h"
+#include "qpid/sys/Mutex.h"
 
 using namespace qpid::broker;
 
diff --git a/qpid/cpp/src/qpid/broker/MessageAllocator.h b/qpid/cpp/src/qpid/broker/MessageAllocator.h
index 4daf7f2174..e22aee8bf4 100644
--- a/qpid/cpp/src/qpid/broker/MessageAllocator.h
+++ b/qpid/cpp/src/qpid/broker/MessageAllocator.h
@@ -31,7 +31,7 @@ namespace qpid {
 namespace broker {
 
 class Queue;
-class QueuedMessage;
+struct QueuedMessage;
 
 class MessageAllocator
 {