diff --git a/rpcs3/tests/test_fmt.cpp b/rpcs3/tests/test_fmt.cpp
index 95c31d17c6..069051bd1a 100644
--- a/rpcs3/tests/test_fmt.cpp
+++ b/rpcs3/tests/test_fmt.cpp
@@ -1,3 +1,4 @@
+#include <algorithm>
 #include <gtest/gtest.h>
 #include "Utilities/StrUtil.h"