diff --git a/SmartArrayControllerTool/SmartArrayControllerTool.cpp b/SmartArrayControllerTool/SmartArrayControllerTool.cpp
index f30d0f9..15bfb9c 100644
--- a/SmartArrayControllerTool/SmartArrayControllerTool.cpp
+++ b/SmartArrayControllerTool/SmartArrayControllerTool.cpp
@@ -208,7 +208,7 @@ int wmain(int argc, wchar_t* argv[])
 	};
 	*/
 
-	UCHAR payload[120];
+	UCHAR payload[632];
 	ZeroMemory(payload, ARRAYSIZE(payload));
 
 	const size_t requestSize = sizeof(SRB_IO_CONTROL) + ARRAYSIZE(payload);