diff --git a/DCCWaveform.cpp b/DCCWaveform.cpp
index 89d0804..3247c05 100644
--- a/DCCWaveform.cpp
+++ b/DCCWaveform.cpp
@@ -154,7 +154,7 @@ void DCCWaveform::interrupt2() {
     // As we get to the end of the preambles, open the reminder window.
     // This delays any reminder insertion until the last moment so
     // that the reminder doesn't block a more urgent packet. 
-    reminderWindowOpen=transmitRepeats==0 && remainingPreambles<4 && remainingPreambles>1;
+    reminderWindowOpen=transmitRepeats==0 && remainingPreambles<10 && remainingPreambles>1;
     if (remainingPreambles==1)
       promotePendingPacket();
     else if (isMainTrack && railcomActive) {