diff --git a/ntp_sources.c b/ntp_sources.c
index 01a1b04..00f8e3e 100644
--- a/ntp_sources.c
+++ b/ntp_sources.c
@@ -403,6 +403,15 @@ NSR_TakeSourcesOnline(IPAddr *mask, IPAddr *address)
     }
   }
 
+  if (address->family == IPADDR_UNSPEC) {
+    struct UnresolvedSource *us;
+
+    for (us = unresolved_sources; us; us = us->next) {
+      any = 1;
+      us->params.online = 1;
+    }
+  }
+
   return any;
 }
 
@@ -434,6 +443,15 @@ NSR_TakeSourcesOffline(IPAddr *mask, IPAddr *address)
     NCR_TakeSourceOffline(records[syncpeer].data);
   }
 
+  if (address->family == IPADDR_UNSPEC) {
+    struct UnresolvedSource *us;
+
+    for (us = unresolved_sources; us; us = us->next) {
+      any = 1;
+      us->params.online = 0;
+    }
+  }
+
   return any;
 }