diff --git a/test/test_memory.cpp b/test/test_memory.cpp
index 1b88c8a5..8fc7e628 100644
--- a/test/test_memory.cpp
+++ b/test/test_memory.cpp
@@ -43,6 +43,7 @@ SOFTWARE.
 #include <stdint.h>
 #include <vector>
 #include <memory>
+#include <type_traits>
 
 namespace
 {