diff --git a/src/gallium/auxiliary/util/u_tests.c b/src/gallium/auxiliary/util/u_tests.c
index 376ef89fc65..bec15df2aab 100644
--- a/src/gallium/auxiliary/util/u_tests.c
+++ b/src/gallium/auxiliary/util/u_tests.c
@@ -594,7 +594,7 @@ test_sync_file_fences(struct pipe_context *ctx)
    pass = pass && screen->fence_finish(screen, NULL, final_fence, 0);
 
    /* Cleanup. */
-#ifndef PIPE_OS_WINDOWS
+#if !DETECT_OS_WINDOWS
    if (buf_fd >= 0)
       close(buf_fd);
    if (tex_fd >= 0)