diff --git a/artiq/gateware/targets/kc705_sma_spi.py b/artiq/gateware/targets/kc705_sma_spi.py
index 2ca47ccce..cea74c574 100644
--- a/artiq/gateware/targets/kc705_sma_spi.py
+++ b/artiq/gateware/targets/kc705_sma_spi.py
@@ -127,7 +127,6 @@ class SMA_SPI(_NIST_Ions):
         self.submodules.cri_con = rtio.CRIInterconnectShared(
             [self.rtio.cri, self.rtio_dma.cri],
             [self.rtio_core.cri])
-        self.register_kernel_cpu_csrdevice("cri_con")
         self.submodules.rtio_moninj = rtio.MonInj(rtio_channels)
         self.csr_devices.append("rtio_moninj")