diff --git a/attn/attn_handler.service.in b/attn/attn_handler.service.in
index ce2166c..b656a64 100644
--- a/attn/attn_handler.service.in
+++ b/attn/attn_handler.service.in
@@ -6,12 +6,13 @@
 After=fsi-scan@0.service
 After=op-cfam-reset.service
 After=cfam_override@0.service
+After=openpower-update-bios-attr-table.service
 Conflicts=obmc-host-stop@0.target
 Conflicts=obmc-host-timeout@0.target
 StartLimitIntervalSec=600
 
 [Service]
-@ENABLE_PHAL_TRUE@Environment="PDBG_DTB=/var/lib/phosphor-software-manager/pnor/rw/DEVTREE"
+@ENABLE_PHAL_TRUE@Environment="PDBG_DTB=/var/lib/phosphor-software-manager/hostfw/running/DEVTREE"
 ExecStart=/usr/bin/openpower-hw-diags --daemon
 Restart=on-failure