diff --git a/attn/attn_handler.service.in b/attn/attn_handler.service.in
index def8a00..ff31f34 100644
--- a/attn/attn_handler.service.in
+++ b/attn/attn_handler.service.in
@@ -12,7 +12,8 @@
 
 [Service]
 @ENABLE_PHAL_TRUE@Environment="PDBG_DTB=/var/lib/phosphor-software-manager/hostfw/running/DEVTREE"
-ExecStart=/usr/bin/openpower-hw-diags --daemon
+EnvironmentFile=/etc/default/attn_config                                        
+ExecStart=/usr/bin/openpower-hw-diags --daemon $CONFIG
 Restart=on-failure
 
 [Install]