diff --git a/library/axi_hdmi_tx/axi_hdmi_tx_constr.xdc b/library/axi_hdmi_tx/axi_hdmi_tx_constr.xdc
index 628f1017f..dfcef7db2 100644
--- a/library/axi_hdmi_tx/axi_hdmi_tx_constr.xdc
+++ b/library/axi_hdmi_tx/axi_hdmi_tx_constr.xdc
@@ -1,6 +1,6 @@
 
-#set_clock_groups -asynchronous -group [get_clocks -of_objects [get_ports hdmi_clk]]
-#set_clock_groups -asynchronous -group [get_clocks -of_objects [get_ports s_axi_aclk]]
-#set_clock_groups -asynchronous -group [get_clocks -of_objects [get_ports m_axis_mm2s_clk]]
+set_clock_groups -asynchronous -group [get_clocks -of_objects [get_ports hdmi_clk]]
+set_clock_groups -asynchronous -group [get_clocks -of_objects [get_ports s_axi_aclk]]
+set_clock_groups -asynchronous -group [get_clocks -of_objects [get_ports m_axis_mm2s_clk]]