diff --git a/queue.cpp b/queue.cpp
index d6993fef..752945f6 100644
--- a/queue.cpp
+++ b/queue.cpp
@@ -427,6 +427,8 @@ byte * ByteQueue::CreatePutSpace(size_t &size)
 
 ByteQueue & ByteQueue::operator=(const ByteQueue &rhs)
 {
+	if(this == &rhs) return *this;
+
 	Destroy();
 	CopyFrom(rhs);
 	return *this;