diff --git a/projects/fmcomms6/zc706/system_constr.xdc b/projects/fmcomms6/zc706/system_constr.xdc
index a650a93ee..01ec445cf 100644
--- a/projects/fmcomms6/zc706/system_constr.xdc
+++ b/projects/fmcomms6/zc706/system_constr.xdc
@@ -55,8 +55,5 @@ set_property  -dict {PACKAGE_PIN  AK26  IOSTANDARD LVCMOS25} [get_ports adf4351_
 
 create_clock -name adc_clk_in   -period  3.22 [get_ports adc_clk_in_p]
 create_clock -name adc_clk      -period  3.22 [get_pins i_system_wrapper/system_i/axi_ad9652/adc_clk]
-create_clock -name fmc_dma_clk  -period  8.00 [get_pins i_system_wrapper/system_i/sys_ps7/FCLK_CLK2]
 
 set_clock_groups -asynchronous -group {adc_clk}
-set_clock_groups -asynchronous -group {fmc_dma_clk}
-