diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index 8a46ded33..c2f22aee4 100644
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -243,6 +243,9 @@ returns
       state_type = Ticket::StateType.lookup( id: state.state_type_id )
     end
 
+    # set all to seen if new state is pending reminder state
+    return true if state_type.name == 'pending reminder'
+
     # set all to seen if new state is a closed or merged state
     return true if state_type.name == 'closed'
     return true if state_type.name == 'merged'