diff --git a/library/axi_ad9680/axi_ad9680.v b/library/axi_ad9680/axi_ad9680.v
index c87d1beb9..688b422a5 100644
--- a/library/axi_ad9680/axi_ad9680.v
+++ b/library/axi_ad9680/axi_ad9680.v
@@ -84,7 +84,6 @@ module axi_ad9680 (
   parameter PCORE_ID = 0;
   parameter PCORE_DEVICE_TYPE = 0;
   parameter PCORE_IODELAY_GROUP = "adc_if_delay_group";
-  parameter C_S_AXI_MIN_SIZE = 32'hffff;
 
   // jesd interface 
   // rx_clk is (line-rate/40)