2 files changed, 6 insertions, 0 deletions

diff --git a/keyboards/misterknife/knife66/rules.mk b/keyboards/misterknife/knife66/rules.mk
index 540a423f2..2202d51ea 100644
--- a/keyboards/misterknife/knife66/rules.mk
+++ b/keyboards/misterknife/knife66/rules.mk
@@ -1,6 +1,9 @@
 # MCU name
 MCU = STM32F072
 
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/misterknife/knife66_iso/rules.mk b/keyboards/misterknife/knife66_iso/rules.mk
index 540a423f2..2202d51ea 100644
--- a/keyboards/misterknife/knife66_iso/rules.mk
+++ b/keyboards/misterknife/knife66_iso/rules.mk
@@ -1,6 +1,9 @@
 # MCU name
 MCU = STM32F072
 
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
 # Build Options
 #   change yes to no to disable
 #