diff --git a/projects/adrv9009zu11eg/common/adrv9009zu11eg_bd.tcl b/projects/adrv9009zu11eg/common/adrv9009zu11eg_bd.tcl
index 8b2234834..9b5096240 100644
--- a/projects/adrv9009zu11eg/common/adrv9009zu11eg_bd.tcl
+++ b/projects/adrv9009zu11eg/common/adrv9009zu11eg_bd.tcl
@@ -23,6 +23,7 @@ create_bd_port -dir I dac_fifo_bypass
 
 ad_ip_instance zynq_ultra_ps_e sys_ps8
 
+ad_ip_parameter sys_ps8 CONFIG.PSU__PSS_REF_CLK__FREQMHZ 33.333333333
 ad_ip_parameter sys_ps8 CONFIG.PSU__USE__M_AXI_GP0 0
 ad_ip_parameter sys_ps8 CONFIG.PSU__USE__M_AXI_GP1 0
 ad_ip_parameter sys_ps8 CONFIG.PSU__USE__M_AXI_GP2 1
diff --git a/projects/common/zcu102/zcu102_system_bd.tcl b/projects/common/zcu102/zcu102_system_bd.tcl
index 19c2d4f13..30c6e1d02 100644
--- a/projects/common/zcu102/zcu102_system_bd.tcl
+++ b/projects/common/zcu102/zcu102_system_bd.tcl
@@ -22,6 +22,7 @@ ad_ip_instance zynq_ultra_ps_e sys_ps8
 apply_bd_automation -rule xilinx.com:bd_rule:zynq_ultra_ps_e \
   -config {apply_board_preset 1}  [get_bd_cells sys_ps8]
 
+ad_ip_parameter sys_ps8 CONFIG.PSU__PSS_REF_CLK__FREQMHZ 33.333333333
 ad_ip_parameter sys_ps8 CONFIG.PSU__USE__M_AXI_GP0 0
 ad_ip_parameter sys_ps8 CONFIG.PSU__USE__M_AXI_GP1 0
 ad_ip_parameter sys_ps8 CONFIG.PSU__USE__M_AXI_GP2 1