From 21c8cefef28a52c854a0613c95e77b5e7de0f3cd Mon Sep 17 00:00:00 2001
From: David Kocik <kocikdav@gmail.com>
Date: Mon, 16 Jan 2023 13:30:09 +0100
Subject: [PATCH] downloader - binary write on resume

---
 src/slic3r/GUI/DownloaderFileGet.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/DownloaderFileGet.cpp b/src/slic3r/GUI/DownloaderFileGet.cpp
index 10142c7c1..deac45ad5 100644
--- a/src/slic3r/GUI/DownloaderFileGet.cpp
+++ b/src/slic3r/GUI/DownloaderFileGet.cpp
@@ -129,7 +129,7 @@ void FileGet::priv::get_perform()
 	if (m_written == 0)
 		file = fopen(temp_path_wstring.c_str(), "wb");
 	else 
-		file = fopen(temp_path_wstring.c_str(), "a");
+		file = fopen(temp_path_wstring.c_str(), "ab");
 
 	assert(file != NULL);