diff --git a/src/toxic_windows.h b/src/toxic_windows.h
index 0bd7aaa..5e4d1a3 100644
--- a/src/toxic_windows.h
+++ b/src/toxic_windows.h
@@ -104,7 +104,7 @@ typedef struct {
 
 #define MAX_FILES 256
 #define FILE_PIECE_SIZE 1024
-#define TIMEOUT_FILESENDER 10
+#define TIMEOUT_FILESENDER 300
 #define MAX_PIECES_SEND 100  /* Max number of pieces to send per file per call to do_file_senders() */
 
 typedef struct {