diff --git a/keyboards/converter/usb_usb/hasu/rules.mk b/keyboards/converter/usb_usb/hasu/rules.mk
index c2ee0bc86..2538a0edd 100644
--- a/keyboards/converter/usb_usb/hasu/rules.mk
+++ b/keyboards/converter/usb_usb/hasu/rules.mk
@@ -1,2 +1,5 @@
 # Processor frequency
 F_CPU = 16000000
+
+# Bootloader selection
+BOOTLOADER = atmel-dfu