diff --git a/src/gateware/zc706.py b/src/gateware/zc706.py
index 5bb1af9..d933113 100755
--- a/src/gateware/zc706.py
+++ b/src/gateware/zc706.py
@@ -683,6 +683,7 @@ class CXP_FMC():
 
         platform.add_extension(debug_sma)
         platform.add_extension(pmod1_33)
+        debug_sma_pad = platform.request("user_sma_clock_33") 
         pmod_pads = [platform.request("pmod1_33", i) for i in range(8)]
 
         clk_freq = 125e6
@@ -697,7 +698,7 @@ class CXP_FMC():
             upconn_pads=cxp_upconn_pads,
             downconn_pads=cxp_downconn_pads,
             sys_clk_freq=clk_freq,
-            debug_sma=platform.request("user_sma_clock_33"),
+            debug_sma=debug_sma_pad,
             pmod_pads = pmod_pads
         )
         self.csr_devices.append("cxp_phys")
@@ -712,7 +713,7 @@ class CXP_FMC():
 
             # TODO: cdr = ClockDomainsRenamer({"cxp_gtx_rx": "cxp_gtx_rx" + str(i)})
             
-            cxp_interface = cxp.CXP_Interface(tx, rx, debug_sma, pmod_pads)
+            cxp_interface = cxp.CXP_Interface(tx, rx, debug_sma_pad, pmod_pads)
             setattr(self.submodules, cxp_name, cxp_interface )
             self.csr_devices.append(cxp_name)
             cxp_csr_group.append(cxp_name)