diff --git a/qosmngr/files/airoha/lib/qos/airoha.sh b/qosmngr/files/airoha/lib/qos/airoha.sh
index 23cf3bba4..00ca24580 100755
--- a/qosmngr/files/airoha/lib/qos/airoha.sh
+++ b/qosmngr/files/airoha/lib/qos/airoha.sh
@@ -134,6 +134,10 @@ hw_init_all() {
     # set_wan_ingress_rate "0" - Not needed, done in policer.sh
     set_wan_egress_rate "0" "0"
 
+    # Don't put TCP ACKs into a high priority queue
+    echo 0 > /proc/qdma_lan/tcp_ack_flag
+    echo 0 > /proc/qdma_wan/tcp_ack_flag
+
     return 0
 }