X-Git-Url: https://git.r.bdr.sh/rbdr/mobius/blobdiff_plain/d1cd666473e5d9097b34bad3388c8c0595612089..0a92e50b2704c1eb02233c9aa5778d21455d345b:/hotline/transaction_handlers.go

diff --git a/hotline/transaction_handlers.go b/hotline/transaction_handlers.go
index 4a86831..abe2c54 100644
--- a/hotline/transaction_handlers.go
+++ b/hotline/transaction_handlers.go
@@ -1521,12 +1521,14 @@ func HandleUploadFile(cc *ClientConn, t *Transaction) (res []Transaction, err er
 	transactionRef := cc.Server.NewTransactionRef()
 	data := binary.BigEndian.Uint32(transactionRef)
 
+	cc.Server.mux.Lock()
 	cc.Server.FileTransfers[data] = &FileTransfer{
 		FileName:        fileName,
 		FilePath:        filePath,
 		ReferenceNumber: transactionRef,
 		Type:            FileUpload,
 	}
+	cc.Server.mux.Unlock()
 
 	replyT := cc.NewReply(t, NewField(fieldRefNum, transactionRef))