diff --git a/test/micro/org/openjdk/bench/java/lang/foreign/libQSortJNI.c b/test/micro/org/openjdk/bench/java/lang/foreign/libQSortJNI.c
index 9213c345dff..663e22bac8c 100644
--- a/test/micro/org/openjdk/bench/java/lang/foreign/libQSortJNI.c
+++ b/test/micro/org/openjdk/bench/java/lang/foreign/libQSortJNI.c
@@ -28,7 +28,7 @@
 #include "jlong.h"
 #include "JNICB.h"
 
-#ifdef _WIN64
+#ifdef _WIN32
 #define THREAD_LOCAL __declspec(thread)
 #else
 #define THREAD_LOCAL __thread