diff --git a/class/msc/usbh_msc.c b/class/msc/usbh_msc.c
index 6c1f76b6..b3937944 100644
--- a/class/msc/usbh_msc.c
+++ b/class/msc/usbh_msc.c
@@ -13,7 +13,7 @@
 
 #define DEV_FORMAT "/dev/sd%c"
 
-USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_msc_buf[32];
+USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_msc_buf[64];
 
 static struct usbh_msc g_msc_class[CONFIG_USBHOST_MAX_MSC_CLASS];
 static uint32_t g_devinuse = 0;