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-rw-r--r--tmk_core/protocol/vusb/usbdrv/usbdrv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tmk_core/protocol/vusb/usbdrv/usbdrv.c b/tmk_core/protocol/vusb/usbdrv/usbdrv.c
index 2e8dd8756b..30cdc9dcfc 100644
--- a/tmk_core/protocol/vusb/usbdrv/usbdrv.c
+++ b/tmk_core/protocol/vusb/usbdrv/usbdrv.c
@@ -95,7 +95,7 @@ const PROGMEM int usbDescriptorStringDevice[] = {
#if USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER == 0 && USB_CFG_SERIAL_NUMBER_LEN
#undef USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER
#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER sizeof(usbDescriptorStringSerialNumber)
-PROGMEM int usbDescriptorStringSerialNumber[] = {
+const PROGMEM int usbDescriptorStringSerialNumber[] = {
USB_STRING_DESCRIPTOR_HEADER(USB_CFG_SERIAL_NUMBER_LEN),
USB_CFG_SERIAL_NUMBER
};