diff --git a/app/dfu/STM32_USB_Device_Library/Class/DFU/Src/usbd_dfu.cpp b/app/dfu/STM32_USB_Device_Library/Class/DFU/Src/usbd_dfu.cpp
index ebd2b4c..1fa40e9 100644
--- a/app/dfu/STM32_USB_Device_Library/Class/DFU/Src/usbd_dfu.cpp
+++ b/app/dfu/STM32_USB_Device_Library/Class/DFU/Src/usbd_dfu.cpp
@@ -305,7 +305,7 @@ __ALIGN_BEGIN static uint8_t USBD_DFU_CfgDesc[USB_DFU_CONFIG_DESC_SIZ] __ALIGN_E
     0x83,                  // bEndpointAddress
     0x03,                           // bmAttributes: Interrupt
     8,    // wMaxPacketSize:
-    8,
+    0,
     0x9,                           // bInterval: polling interval in frames of 1ms
 
     //--------------------------------------------------------------------------