diff --git a/Sources/DuooomiBleSDK/DuooomiBleSDK+Transfer.swift b/Sources/DuooomiBleSDK/DuooomiBleSDK+Transfer.swift
index 041fceb..ec4d26a 100644
--- a/Sources/DuooomiBleSDK/DuooomiBleSDK+Transfer.swift
+++ b/Sources/DuooomiBleSDK/DuooomiBleSDK+Transfer.swift
@@ -73,6 +73,7 @@ extension DuooomiBleSDK {
             completion(.failure(DuooomiBleError.notConnected))
             return
         }
+        transferProgress = 0
         let url = fileUrl.trimmingCharacters(in: .whitespacesAndNewlines)
         guard !url.isEmpty else {
             completion(.failure(DuooomiBleError.transferFailed("Empty file URL")))