diff --git a/ChangeLog b/ChangeLog
index 9f075ef7..cc8f7c10 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -23810,3 +23810,6 @@
 2022-12-13 Fred Gleason <fredg@paravelsystems.com>
 	* Added logic to the 'Edit Voice Track Marker' dialog in rdlogedit(1)
 	to prevent entry of an empty comment.
+2022-12-13 Fred Gleason <fredg@paravelsystems.com>
+	* Added logic to the 'Edit Log Marker' dialog in rdlogedit(1)
+	to prevent entry of an empty comment.
diff --git a/rdlogedit/edit_marker.cpp b/rdlogedit/edit_marker.cpp
index 005408ad..9bda4f71 100644
--- a/rdlogedit/edit_marker.cpp
+++ b/rdlogedit/edit_marker.cpp
@@ -42,6 +42,8 @@ EditMarker::EditMarker(QWidget *parent)
   QLabel *label=new QLabel(tr("Comment"),this);
   label->setFont(labelFont());
   label->setGeometry(12,100,70,14);
+  connect(edit_comment_edit,SIGNAL(textChanged(const QString &)),
+	  this,SLOT(commentChangedData(const QString &)));
 
   //
   // Label
@@ -72,11 +74,18 @@ int EditMarker::exec(RDLogLine *ll)
   setLogLine(ll);
   edit_comment_edit->setText(logLine()->markerComment());
   edit_label_edit->setText(logLine()->markerLabel());
+  commentChangedData(edit_comment_edit->text());
 
   return EditEvent::exec();
 }
 
 
+void EditMarker::commentChangedData(const QString &str)
+{
+  setOkEnabled(!str.trimmed().isEmpty());
+}
+
+
 bool EditMarker::saveData()
 {
   logLine()->setMarkerComment(edit_comment_edit->text());
diff --git a/rdlogedit/edit_marker.h b/rdlogedit/edit_marker.h
index cd7af9d5..6c9537a6 100644
--- a/rdlogedit/edit_marker.h
+++ b/rdlogedit/edit_marker.h
@@ -36,6 +36,9 @@ class EditMarker : public EditEvent
  public slots:
   int exec(RDLogLine *ll);
 
+ private slots:
+  void commentChangedData(const QString &str);
+
  protected:
   bool saveData();