1 files changed, 1 insertions, 0 deletions
diff --git a/techlibs/sf2/cells_map.v b/techlibs/sf2/cells_map.v
index 6ad7807d2..9fddc0f41 100644
--- a/techlibs/sf2/cells_map.v
+++ b/techlibs/sf2/cells_map.v
@@ -59,6 +59,7 @@ module \$lut (A, Y);
   parameter WIDTH = 0;
   parameter LUT = 0;
 
+  (* force_downto *)
   input [WIDTH-1:0] A;
   output Y;