diff --git a/tests/tests/jni/libjnitest/macroized_tests.c b/tests/tests/jni/libjnitest/macroized_tests.c
index 77ac669..e40601c 100644
--- a/tests/tests/jni/libjnitest/macroized_tests.c
+++ b/tests/tests/jni/libjnitest/macroized_tests.c
@@ -31,6 +31,7 @@
 #include "helper.h"
 #include <stdbool.h>
 #include <stdlib.h>
+#include <string.h>
 
 
 /** reference to test class {@code InstanceFromNative} */