diff --git a/checkin_notes b/checkin_notes
index 620fe474c1..b92650cf1a 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -17519,10 +17519,12 @@ David  21 Sept 2004
         If the resulting file is empty, try client_state_prev.xml
         This should hopefully fix cases of state file corruption on crash
     - change request delay from 1 hour to 1 day for:
+        - unknown platform
         - no work for this platform
         - core client out of date
 
     client/
         cs_statefile.C
     sched/
+        handle_request.C
         sched_send.C
diff --git a/sched/handle_request.C b/sched/handle_request.C
index e05a614e69..4f3b43eced 100644
--- a/sched/handle_request.C
+++ b/sched/handle_request.C
@@ -724,6 +724,7 @@ void process_request(
             SCHED_MSG_LOG::CRITICAL, "[HOST#%d] platform '%s' not found\n",
             reply.host.id, sreq.platform_name
         );
+        reply.request_delay = 3600*24;
         goto leave;
     }