diff --git a/doc/management.txt b/doc/management.txt
index 27b7551..4aaed2e 100644
--- a/doc/management.txt
+++ b/doc/management.txt
@@ -1886,6 +1886,9 @@
                                     0x10 = SRV_ADMF_IDRAIN
                                       The server has inherited the drain status
                                       from a tracked server.
+                                    0x20 = SRV_ADMF_RMAINT
+                                      The server is in maintenance because of an
+                                      IP address resolution failure.
      srv_uweight:                 User visible server's weight.
      srv_iweight:                 Server's initial weight.
      srv_time_since_last_change:  Time since last operational change.
diff --git a/include/types/server.h b/include/types/server.h
index 19da2ad..57971a2 100644
--- a/include/types/server.h
+++ b/include/types/server.h
@@ -76,11 +76,12 @@
 enum srv_admin {
 	SRV_ADMF_FMAINT    = 0x01,        /* the server was explicitly forced into maintenance */
 	SRV_ADMF_IMAINT    = 0x02,        /* the server has inherited the maintenance status from a tracked server */
-	SRV_ADMF_MAINT     = 0x03,        /* mask to check if any maintenance flag is present */
+	SRV_ADMF_MAINT     = 0x23,        /* mask to check if any maintenance flag is present */
 	SRV_ADMF_CMAINT    = 0x04,        /* the server is in maintenance because of the configuration */
 	SRV_ADMF_FDRAIN    = 0x08,        /* the server was explicitly forced into drain state */
 	SRV_ADMF_IDRAIN    = 0x10,        /* the server has inherited the drain status from a tracked server */
 	SRV_ADMF_DRAIN     = 0x18,        /* mask to check if any drain flag is present */
+	SRV_ADMF_RMAINT    = 0x20,        /* the server is down because of an IP address resolution failure */
 };
 
 /* server-state-file version */