diff --git a/RockWeb/Blocks/Reminders/ReminderList.ascx.cs b/RockWeb/Blocks/Reminders/ReminderList.ascx.cs
index e020e08f765..a82859c7a45 100644
--- a/RockWeb/Blocks/Reminders/ReminderList.ascx.cs
+++ b/RockWeb/Blocks/Reminders/ReminderList.ascx.cs
@@ -546,7 +546,7 @@ private List<ReminderViewModel> GetReminders( int? entityTypeId, int? entityId,
 
             foreach ( var reminder in reminders.ToList() )
             {
-                var entity = reminderEntities[reminder.Id];
+                var entity = reminderEntities.ContainsKey( reminder.Id ) ? reminderEntities[reminder.Id] : null;
                 if ( entity == null )
                 {
                     invalidReminders.Add( reminder );