diff --git a/tests/malloc_test.cpp b/tests/malloc_test.cpp
index 813f348..3f1ba79 100644
--- a/tests/malloc_test.cpp
+++ b/tests/malloc_test.cpp
@@ -47,6 +47,7 @@
 #include <android-base/file.h>
 #include <android-base/test_utils.h>
 
+#include "DoNotOptimize.h"
 #include "utils.h"
 
 #if defined(__BIONIC__)