diff --git a/projects/ad7124_asdz/de10nano/system_qsys.tcl b/projects/ad7124_asdz/de10nano/system_qsys.tcl
index 599c2208c6..7632bda216 100755
--- a/projects/ad7124_asdz/de10nano/system_qsys.tcl
+++ b/projects/ad7124_asdz/de10nano/system_qsys.tcl
@@ -14,6 +14,14 @@ set_instance_parameter_value sys_gpio_in {irqType} {EDGE}
 set_instance_parameter_value sys_spi {clockPolarity} {0}
 set_instance_parameter_value sys_spi {targetClockRate} {20000000.0}
 
+# change sys spi ref clock to 80MHz
+
+remove_connection sys_clk.clk/sys_spi.clk
+remove_connection sys_clk.clk_reset/sys_spi.reset
+
+add_connection sys_dma_clk.clk sys_spi.clk
+add_connection sys_dma_clk.clk_reset sys_spi.reset
+
 #system ID
 set_instance_parameter_value axi_sysid_0 {ROM_ADDR_BITS} {9}
 set_instance_parameter_value rom_sys_0 {ROM_ADDR_BITS} {9}