diff --git a/techlibs/ice40/cells_map.v b/techlibs/ice40/cells_map.v
index 662423f0a..efd763ef6 100644
--- a/techlibs/ice40/cells_map.v
+++ b/techlibs/ice40/cells_map.v
@@ -65,7 +65,7 @@ endmodule
 `ifndef NO_ADDER
 module \$__ICE40_CARRY_WRAPPER (output CO, O, input A, B, CI, I0, I3);
   parameter LUT = 0;
-  SB_CARRY carry (
+  SB_CARRY _TECHMAP_REPLACE_ (
     .I0(A),
     .I1(B),
     .CI(CI),