diff --git a/value_init_test.cpp b/value_init_test.cpp
index e536693..d5410cb 100644
--- a/value_init_test.cpp
+++ b/value_init_test.cpp
@@ -8,6 +8,7 @@
 //
 // Initial: 21 Agu 2002
 
+#include <cstring>  // For memcmp.
 #include <iostream>
 #include <string>