diff --git a/SignalServiceKit/src/Messages/Interactions/TSOutgoingMessage.m b/SignalServiceKit/src/Messages/Interactions/TSOutgoingMessage.m
index 6f3fb497e..8a992cba5 100644
--- a/SignalServiceKit/src/Messages/Interactions/TSOutgoingMessage.m
+++ b/SignalServiceKit/src/Messages/Interactions/TSOutgoingMessage.m
@@ -653,7 +653,7 @@ NSString *NSStringForOutgoingMessageRecipientState(OWSOutgoingMessageRecipientSt
                                      return;
                                  }
                                  recipientState.state = OWSOutgoingMessageRecipientStateSent;
-                                 recipientState.wasSentByUD |= wasSentByUD;
+                                 recipientState.wasSentByUD = wasSentByUD;
                              }];
 }