diff --git a/configure.ac b/configure.ac
index 7112ca7..3c8fadc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -94,6 +94,9 @@
     # Timeouts in SECONDS for SoftPowerOff protocol
     [AC_ARG_VAR(IPMI_SMS_ATN_ACK_TIMEOUT_SECS, [Initial timeout for host to ack SMS_ATN from BMC])]
     [AC_DEFINE_UNQUOTED([IPMI_SMS_ATN_ACK_TIMEOUT_SECS], [3], [Initial timeout for host to ack SMS_ATN from BMC])]
+
+    [AC_ARG_VAR(IPMI_HOST_SHUTDOWN_COMPLETE_TIMEOUT_SECS, [Wait time until Host can quiesce])]
+    [AC_DEFINE_UNQUOTED([IPMI_HOST_SHUTDOWN_COMPLETE_TIMEOUT_SECS], [45*60], [Wait time until Host can quiesce])]
 )
 
 # Create configured output