diff --git a/HISTORY b/HISTORY
index a465182a..fdc91853 100644
--- a/HISTORY
+++ b/HISTORY
@@ -9578,7 +9578,7 @@ Video Disk Recorder Revision History
   given (reported by Manuel Reimer).
 - Fixed handling $(PKG_CONFIG) in newplugin (thanks to Winfried Köhler).
 
-2021-01-11:
+2021-01-14:
 
 - Fixed strreplace() to handle NULL strings (reported by Jürgen Schneider).
 - Somewhere down the road the 'x' bit of Doxyfile.filter got lost, so the
@@ -9593,3 +9593,4 @@ Video Disk Recorder Revision History
   (reported by Jürgen Schneider).
 - Increased the number of possible modulation systems in cDevice::GetDevice()
   (reported by Ulf Grüne).
+- Now explicitly triggering respawning of pattern timers.
diff --git a/channels.h b/channels.h
index de99830f..dd16b351 100644
--- a/channels.h
+++ b/channels.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: channels.h 4.5 2020/06/10 14:00:36 kls Exp $
+ * $Id: channels.h 5.1 2021/01/14 10:29:05 kls Exp $
  */
 
 #ifndef __CHANNELS_H
@@ -178,6 +178,7 @@ public:
   void SetNumber(int Number) { number = Number; }
   bool GroupSep(void) const { return groupSep; }
   const char *Parameters(void) const { return parameters; }
+  const cSchedule *Schedule(void) const { return schedule; }
   const cLinkChannels* LinkChannels(void) const { return linkChannels; }
   const cChannel *RefChannel(void) const { return refChannel; }
   bool IsAtsc(void) const { return cSource::IsAtsc(source); }
diff --git a/menu.c b/menu.c
index 4b2815ec..8685fb1c 100644
--- a/menu.c
+++ b/menu.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.c 5.2 2021/01/01 15:26:27 kls Exp $
+ * $Id: menu.c 5.3 2021/01/14 10:29:05 kls Exp $
  */
 
 #include "menu.h"
@@ -1191,6 +1191,7 @@ eOSState cMenuEditTimer::ProcessKey(eKeys Key)
                               data.SetEvent(NULL);
                            *timer = data;
                            }
+                        timer->TriggerRespawn();
                         LOCK_SCHEDULES_READ;
                         timer->SetEventFromSchedule(Schedules);
                         timer->Matches();
diff --git a/svdrp.c b/svdrp.c
index b3c4c350..b993577f 100644
--- a/svdrp.c
+++ b/svdrp.c
@@ -10,7 +10,7 @@
  * and interact with the Video Disk Recorder - or write a full featured
  * graphical interface that sits on top of an SVDRP connection.
  *
- * $Id: svdrp.c 5.2 2021/01/01 21:23:00 kls Exp $
+ * $Id: svdrp.c 5.3 2021/01/14 10:29:05 kls Exp $
  */
 
 #include "svdrp.h"
@@ -1484,6 +1484,7 @@ void cSVDRPServer::CmdDELT(const char *Option)
               Timer->Skip();
               cRecordControls::Process(Timers, time(NULL));
               }
+           Timer->TriggerRespawn();
            Timers->Del(Timer);
            Timers->SetModified();
            isyslog("SVDRP %s < %s deleted timer %s", Setup.SVDRPHostName, *clientName, *Timer->ToDescr());
@@ -2063,6 +2064,7 @@ void cSVDRPServer::CmdMODT(const char *Option)
            isyslog("SVDRP %s < %s modified timer %s (%s)", Setup.SVDRPHostName, *clientName, *Timer->ToDescr(), Timer->HasFlags(tfActive) ? "active" : "inactive");
            if (Timer->IsPatternTimer())
               Timer->SetEvent(NULL);
+           Timer->TriggerRespawn();
            Reply(250, "%d %s", Timer->Id(), *Timer->ToText(true));
            }
         else
diff --git a/timers.c b/timers.c
index 7855bb16..7e697f81 100644
--- a/timers.c
+++ b/timers.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: timers.c 5.2 2021/01/07 16:00:17 kls Exp $
+ * $Id: timers.c 5.3 2021/01/14 10:29:05 kls Exp $
  */
 
 #include "timers.h"
@@ -739,6 +739,20 @@ bool cTimer::SpawnPatternTimers(const cSchedules *Schedules, cTimers *Timers)
   return TimersSpawned;
 }
 
+void cTimer::TriggerRespawn(void)
+{
+  if (HasFlags(tfSpawned) || IsPatternTimer()) {
+     if (Channel()) {
+        LOCK_CHANNELS_READ;
+        if (const cSchedule *Schedule = Channel()->Schedule()) {
+           dsyslog("triggering respawn for timer %s", *ToDescr());
+           LOCK_SCHEDULES_WRITE;
+           const_cast<cSchedule *>(Schedule)->SetModified();
+           }
+        }
+     }
+}
+
 bool cTimer::SetEventFromSchedule(const cSchedules *Schedules)
 {
   if (IsPatternTimer())
@@ -918,7 +932,7 @@ void cTimer::OnOff(void)
      SetFlags(tfActive);
   SetEvent(NULL);
   if (HasFlags(tfActive))
-     scheduleState = -1; // have pattern timers spawn if necessary
+     TriggerRespawn(); // have pattern timers spawn if necessary
   Matches(); // refresh start and end time
 }
 
@@ -1112,6 +1126,7 @@ bool cTimers::DeleteExpired(void)
         cTimer *next = Next(ti);
         if (!ti->Remote() && ti->Expired()) {
            ti->SetEvent(NULL); // Del() doesn't call ~cTimer() right away, so this is necessary here
+           ti->TriggerRespawn(); // in case this is a spawned timer
            isyslog("deleting timer %s", *ti->ToDescr());
            Del(ti);
            TimersModified = true;
diff --git a/timers.h b/timers.h
index 79dc39a6..72e99531 100644
--- a/timers.h
+++ b/timers.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: timers.h 5.1 2020/12/26 15:49:01 kls Exp $
+ * $Id: timers.h 5.2 2021/01/14 10:29:05 kls Exp $
  */
 
 #ifndef __TIMERS_H
@@ -98,6 +98,7 @@ public:
   void SetId(int Id);
   void SpawnPatternTimer(const cEvent *Event, cTimers *Timers);
   bool SpawnPatternTimers(const cSchedules *Schedules, cTimers *Timers);
+  void TriggerRespawn(void);
   bool SetEventFromSchedule(const cSchedules *Schedules);
   bool SetEvent(const cEvent *Event);
   void SetRecording(bool Recording);