diff --git a/src/fall_through_register.sv b/src/fall_through_register.sv
index b1fc199b..01101677 100644
--- a/src/fall_through_register.sv
+++ b/src/fall_through_register.sv
@@ -34,7 +34,6 @@ module fall_through_register #(
 
     fifo_v3 #(
         .FALL_THROUGH   (1'b1),
-        .DATA_WIDTH     ($size(T)),
         .DEPTH          (1),
         .dtype          (T)
     ) i_fifo (