diff --git a/projects/adv7511/common/adv7511_bd.tcl b/projects/adv7511/common/adv7511_bd.tcl
index f1584afe0..a81014023 100755
--- a/projects/adv7511/common/adv7511_bd.tcl
+++ b/projects/adv7511/common/adv7511_bd.tcl
@@ -36,6 +36,7 @@ ad_ip_parameter sys_audio_clkgen CONFIG.CLKOUT1_REQUESTED_OUT_FREQ 12.288
 ad_ip_parameter sys_audio_clkgen CONFIG.USE_LOCKED false
 ad_ip_parameter sys_audio_clkgen CONFIG.USE_RESET false
 ad_ip_parameter sys_audio_clkgen CONFIG.USE_PHASE_ALIGNMENT false
+ad_ip_parameter sys_audio_clkgen CONFIG.PRIM_SOURCE No_buffer
 
 ad_ip_instance axi_spdif_tx axi_spdif_tx_core
 ad_ip_parameter axi_spdif_tx_core CONFIG.DMA_TYPE 0