diff --git a/channelcolumn.c b/channelcolumn.c
index f43f33c..459411d 100644
--- a/channelcolumn.c
+++ b/channelcolumn.c
@@ -386,11 +386,13 @@ void cChannelColumn::SetTimers() {
 #if VDRVERSNUM >= 20301
     hasTimer = false;
     const cSchedule *Schedule = NULL;
+    {
     LOCK_SCHEDULES_READ;
     const cSchedules* schedules = Schedules;
     if (schedules) {
         Schedule = schedules->GetSchedule(channel);
         hasTimer = Schedule ? Schedule->HasTimer() : false;
+        }
     }
 #else
     hasTimer = channel->HasTimer();
diff --git a/epggrid.c b/epggrid.c
index 9b6ef1a..d73cb20 100644
--- a/epggrid.c
+++ b/epggrid.c
@@ -155,9 +155,11 @@ void cEpgGrid::drawText() {
         drawIcon("Switch", theme.Color(clrButtonYellow));
     if (hasTimer) {
         const cTimer *timer = NULL;
+        {
         LOCK_TIMERS_READ;
         timer = Timers->GetMatch(event);
-        if (timer)
+        }
+	if (timer)
 #ifdef USE_SWITCHONLY
            if (timer->HasFlags(tfSwitchOnly))
               drawIcon("Switch", theme.Color(clrButtonYellow));