diff --git a/keyboards/ez_maker/directpins/teensy_32/info.json b/keyboards/ez_maker/directpins/teensy_32/info.json
index 5cebcae1525..0a6ac5c3745 100644
--- a/keyboards/ez_maker/directpins/teensy_32/info.json
+++ b/keyboards/ez_maker/directpins/teensy_32/info.json
@@ -4,6 +4,7 @@
     "maintainer": "skullydazed",
     "debounce": 5,
     "processor": "MK20DX256",
+    "bootloader": "halfkay",
     "features": {
         "bootmagic": true,
         "extrakey": true,
diff --git a/keyboards/ez_maker/directpins/teensy_lc/info.json b/keyboards/ez_maker/directpins/teensy_lc/info.json
index 856a462bb7d..1e88239d416 100644
--- a/keyboards/ez_maker/directpins/teensy_lc/info.json
+++ b/keyboards/ez_maker/directpins/teensy_lc/info.json
@@ -4,6 +4,7 @@
     "maintainer": "skullydazed",
     "debounce": 5,
     "processor": "MKL26Z64",
+    "bootloader": "halfkay",
     "features": {
         "bootmagic": true,
         "extrakey": true,
diff --git a/keyboards/handwired/twadlee/tp69/rules.mk b/keyboards/handwired/twadlee/tp69/rules.mk
index 216e797c4b8..a1c290cf15b 100644
--- a/keyboards/handwired/twadlee/tp69/rules.mk
+++ b/keyboards/handwired/twadlee/tp69/rules.mk
@@ -1,6 +1,9 @@
 # MCU name
 MCU = MKL26Z64
 
+# Bootloader selection
+BOOTLOADER = halfkay
+
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/keychron/q2/rev_0110/rules.mk b/keyboards/keychron/q2/rev_0110/rules.mk
index 957680ab110..30394028b3c 100644
--- a/keyboards/keychron/q2/rev_0110/rules.mk
+++ b/keyboards/keychron/q2/rev_0110/rules.mk
@@ -1,6 +1,9 @@
 # MCU name
 MCU = STM32L433
 
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/keychron/q2/rev_0111/rules.mk b/keyboards/keychron/q2/rev_0111/rules.mk
index 3b931ef9fe2..a295f48e105 100644
--- a/keyboards/keychron/q2/rev_0111/rules.mk
+++ b/keyboards/keychron/q2/rev_0111/rules.mk
@@ -1,6 +1,9 @@
 # MCU name
 MCU = STM32L433
 
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/keychron/q2/rev_0112/rules.mk b/keyboards/keychron/q2/rev_0112/rules.mk
index 957680ab110..30394028b3c 100644
--- a/keyboards/keychron/q2/rev_0112/rules.mk
+++ b/keyboards/keychron/q2/rev_0112/rules.mk
@@ -1,6 +1,9 @@
 # MCU name
 MCU = STM32L433
 
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/keychron/q2/rev_0113/rules.mk b/keyboards/keychron/q2/rev_0113/rules.mk
index 3b931ef9fe2..a295f48e105 100644
--- a/keyboards/keychron/q2/rev_0113/rules.mk
+++ b/keyboards/keychron/q2/rev_0113/rules.mk
@@ -1,6 +1,9 @@
 # MCU name
 MCU = STM32L433
 
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
 # Build Options
 #   change yes to no to disable
 #