diff --git a/SignalServiceKit/src/Messages/OWSMessageSender.m b/SignalServiceKit/src/Messages/OWSMessageSender.m
index 037113c9f..6ce1a2c79 100644
--- a/SignalServiceKit/src/Messages/OWSMessageSender.m
+++ b/SignalServiceKit/src/Messages/OWSMessageSender.m
@@ -1182,7 +1182,7 @@ NSString *const OWSMessageSenderRateLimitedException = @"RateLimitedException";
         NSMutableArray<NSString *> *attachmentIds = [NSMutableArray new];
         for (NSString *attachmentId in outgoingMessage.attachmentIds) {
             TSAttachmentStream *_Nullable outgoingAttachment =
-                [TSAttachmentStream fetchObjectWithUniqueID:attachmentId];
+                [TSAttachmentStream fetchObjectWithUniqueID:attachmentId transaction:transaction];
             OWSAssert(outgoingAttachment);
             if (!outgoingAttachment) {
                 DDLogError(@"%@ Couldn't load outgoing attachment for message sent to self.", self.logTag);