diff --git a/ChangeLog b/ChangeLog
index fed7bbf6..5cb8be75 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -21365,3 +21365,7 @@
 2021-04-05 Fred Gleason <fredg@paravelsystems.com>
 	* Refactored video updates in the voice tracker to take place only
 	within the 'VoiceTracker::paintEvent()' method.
+2021-04-05 Fred Gleason <fredg@paravelsystems.com>
+	* Added a workaround to 'RDCart::updateLength()' to prevent invalid
+	data values from being written to the 'CART.MINIMUM_TALK_LENGTH'
+	field.
diff --git a/lib/rdcart.cpp b/lib/rdcart.cpp
index fdea2c41..3f49e343 100644
--- a/lib/rdcart.cpp
+++ b/lib/rdcart.cpp
@@ -1104,7 +1104,7 @@ void RDCart::updateLength(bool enforce_length,unsigned length)
   // FIXME: CART.MINIMUM_TALK_LENGTH is an unsigned int in the DB, yet we
   //        sometime try to assign -1. Why?
   //
-  if(min_talk_len<0) {
+  if((min_talk_len<0)||(min_talk_len==LLONG_MAX)) {
     min_talk_len=0;
   }
   setMinimumTalkLength(min_talk_len);