diff --git a/library/axi_jesd_gt/axi_jesd_gt.v b/library/axi_jesd_gt/axi_jesd_gt.v
index b90166111..b83ab5d05 100644
--- a/library/axi_jesd_gt/axi_jesd_gt.v
+++ b/library/axi_jesd_gt/axi_jesd_gt.v
@@ -149,9 +149,8 @@ module axi_jesd_gt (
 
   parameter   PCORE_ID = 0;
   parameter   PCORE_DEVICE_TYPE = 0;
-  parameter   PCORE_NUM_OF_LANES = 4;
-  parameter   PCORE_NUM_OF_TX_LANES = PCORE_NUM_OF_LANES;
-  parameter   PCORE_NUM_OF_RX_LANES = PCORE_NUM_OF_LANES;
+  parameter   PCORE_NUM_OF_TX_LANES = 4;
+  parameter   PCORE_NUM_OF_RX_LANES = 4;
   parameter   PCORE_QPLL_REFCLK_DIV = 1;
   parameter   PCORE_QPLL_CFG = 27'h0680181;
   parameter   PCORE_QPLL_FBDIV_RATIO = 1'b1;
@@ -174,6 +173,9 @@ module axi_jesd_gt (
   parameter   PCORE_TX_LANE_SEL_8 = 8;
   parameter   C_S_AXI_MIN_SIZE = 32'hffff;
 
+  localparam  PCORE_NUM_OF_LANES = (PCORE_NUM_OF_TX_LANES > PCORE_NUM_OF_RX_LANES) ?
+                                    PCORE_NUM_OF_TX_LANES : PCORE_NUM_OF_RX_LANES;
+
   // physical interface
 
   input                                         ref_clk_q;