add default nettype none
diff --git a/verilog/rtl/user_id_programming.v b/verilog/rtl/user_id_programming.v
index 5133605..d3186c1 100644
--- a/verilog/rtl/user_id_programming.v
+++ b/verilog/rtl/user_id_programming.v
@@ -1,3 +1,4 @@
+`default_nettype none
 // This module represents an unprogrammed mask revision
 // block that is configured with via programming on the
 // chip top level.  This value is passed to the block as