diff --git a/hw/rtl/VX_ibuffer.v b/hw/rtl/VX_ibuffer.v
index 28c70ad2..7b62c3a4 100644
--- a/hw/rtl/VX_ibuffer.v
+++ b/hw/rtl/VX_ibuffer.v
@@ -39,7 +39,8 @@ module VX_ibuffer #(
 
         VX_elastic_buffer #(
             .DATAW (DATAW),
-            .SIZE  (`IBUF_SIZE)
+            .SIZE  (`IBUF_SIZE),
+            .OUTPUT_REG (`IBUF_SIZE > 2)
         ) queue (
             .clk      (clk),
             .reset    (reset),