diff --git a/include/zlib/contrib/minizip/iowin32.c b/include/zlib/contrib/minizip/iowin32.c
index 7c86140bc1..5361b502da 100644
--- a/include/zlib/contrib/minizip/iowin32.c
+++ b/include/zlib/contrib/minizip/iowin32.c
@@ -28,12 +28,12 @@
 
 #if (_WIN32_WINNT >= 0x0602) // OpenMPT
 // see Include/shared/winapifamily.h in the Windows Kit
+#if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API)))
 
 #if !defined(WINAPI_FAMILY_ONE_PARTITION)
 #define WINAPI_FAMILY_ONE_PARTITION(PartitionSet, Partition) ((WINAPI_FAMILY & PartitionSet) == Partition)
 #endif
 
-#if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API)))
 #if 1 // OpenMPT
 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) // OpenMPT
 #define IOWIN32_USING_WINRT_API 1 // OpenMPT