diff --git a/benchmark/src/test_png_encoding2.cpp b/benchmark/src/test_png_encoding2.cpp
index 19897d180..5791b139c 100644
--- a/benchmark/src/test_png_encoding2.cpp
+++ b/benchmark/src/test_png_encoding2.cpp
@@ -1,5 +1,6 @@
 #include "bench_framework.hpp"
 #include "compare_images.hpp"
+#include <memory>
 
 class test : public benchmark::test_case
 {