diff --git a/src/channels.c b/src/channels.c
index 459f7c47..bd60d3ce 100644
--- a/src/channels.c
+++ b/src/channels.c
@@ -46,7 +46,7 @@
 #include "libssh/server.h"
 #endif
 
-#define WINDOWBASE 128000
+#define WINDOWBASE 1280000
 #define WINDOWLIMIT (WINDOWBASE/2)
 
 /*