diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index 17a0310e8aaaf..b7d3f3843f1e6 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -88,7 +88,7 @@ struct ttm_tt {
 #define TTM_TT_FLAG_EXTERNAL		(1 << 2)
 #define TTM_TT_FLAG_EXTERNAL_MAPPABLE	(1 << 3)
 
-#define TTM_TT_FLAG_PRIV_POPULATED  (1 << 31)
+#define TTM_TT_FLAG_PRIV_POPULATED  (1U << 31)
 	uint32_t page_flags;
 	/** @num_pages: Number of pages in the page array. */
 	uint32_t num_pages;