diff --git a/unittests/feed/BookChangesFeedTests.cpp b/unittests/feed/BookChangesFeedTests.cpp
index c9db6a88b..0f3e00a0a 100644
--- a/unittests/feed/BookChangesFeedTests.cpp
+++ b/unittests/feed/BookChangesFeedTests.cpp
@@ -28,7 +28,6 @@
 #include <gtest/gtest.h>
 #include <ripple/protocol/STObject.h>
 
-#include <memory>
 #include <vector>
 
 using namespace feed::impl;