diff --git a/dlls/msi/tests/msi.c b/dlls/msi/tests/msi.c
index 35618e4d95e..043560e3724 100644
--- a/dlls/msi/tests/msi.c
+++ b/dlls/msi/tests/msi.c
@@ -18,6 +18,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
+#define _WIN32_MSI 300
+
 #include <stdio.h>
 #include <windows.h>
 #include <msi.h>