diff --git a/test/unit/lib/ftl/ftl_io.c/ftl_io_ut.c b/test/unit/lib/ftl/ftl_io.c/ftl_io_ut.c
index 082a598b2..38baa3e0a 100644
--- a/test/unit/lib/ftl/ftl_io.c/ftl_io_ut.c
+++ b/test/unit/lib/ftl/ftl_io.c/ftl_io_ut.c
@@ -73,7 +73,9 @@ DEFINE_STUB(spdk_bdev_writev_blocks, int, (struct spdk_bdev_desc *desc, struct s
 DEFINE_STUB(spdk_bdev_get_num_blocks, uint64_t, (const struct spdk_bdev *bdev), 1024);
 DEFINE_STUB(spdk_bdev_get_md_size, uint32_t, (const struct spdk_bdev *bdev), 0);
 DEFINE_STUB(spdk_bdev_get_block_size, uint32_t, (const struct spdk_bdev *bdev), 4096);
+#if defined(FTL_META_DEBUG)
 DEFINE_STUB(ftl_band_validate_md, bool, (struct ftl_band *band), true);
+#endif
 DEFINE_STUB_V(ftl_trace_wbuf_fill, (struct spdk_ftl_dev *dev, const struct ftl_io *io));
 
 struct spdk_io_channel *