diff --git a/src/test/document/TestDocument.cpp b/src/test/document/TestDocument.cpp
index 7dc44a68641..36b5aa90fb6 100644
--- a/src/test/document/TestDocument.cpp
+++ b/src/test/document/TestDocument.cpp
@@ -10,6 +10,7 @@
 #include "CLucene/document/FieldSelector.h"
 #include "CLucene/index/SDocumentWriter.h"
 #include <nanobench.h>
+#include <memory>
 
 //an in memory input stream for testing binary data
 class MemReader : public CL_NS(util)::Reader {