diff --git a/projects/fmcomms5/zc702/system_top.v b/projects/fmcomms5/zc702/system_top.v
index 1f7f39db9..bb0df2d84 100644
--- a/projects/fmcomms5/zc702/system_top.v
+++ b/projects/fmcomms5/zc702/system_top.v
@@ -154,10 +154,6 @@ module system_top (
   wire            spi1_clk;
   wire            spi1_mosi;
   wire            spi1_miso;
-  wire            txnrx_0;
-  wire            enable_0;
-  wire            txnrx_1;
-  wire            enable_1;
 
   // multi-chip synchronization
 
diff --git a/projects/fmcomms5/zc706/system_top.v b/projects/fmcomms5/zc706/system_top.v
index eebfc282b..0626431d0 100644
--- a/projects/fmcomms5/zc706/system_top.v
+++ b/projects/fmcomms5/zc706/system_top.v
@@ -155,10 +155,6 @@ module system_top (
   wire            spi1_clk;
   wire            spi1_mosi;
   wire            spi1_miso;
-  wire            txnrx_0;
-  wire            enable_0;
-  wire            txnrx_1;
-  wire            enable_1;
 
   // multi-chip synchronization
 
diff --git a/projects/fmcomms5/zcu102/system_top.v b/projects/fmcomms5/zcu102/system_top.v
index 16cbda018..75f4019e6 100644
--- a/projects/fmcomms5/zcu102/system_top.v
+++ b/projects/fmcomms5/zcu102/system_top.v
@@ -121,10 +121,6 @@ module system_top (
   wire            spi1_clk;
   wire            spi1_mosi;
   wire            spi1_miso;
-  wire            txnrx_0;
-  wire            enable_0;
-  wire            txnrx_1;
-  wire            enable_1;
 
   // multi-chip synchronization