diff --git a/bootloader.mk b/bootloader.mk
index 79d3c3d72ab..4f2d69d9985 100644
--- a/bootloader.mk
+++ b/bootloader.mk
@@ -90,7 +90,7 @@ ifeq ($(strip $(BOOTLOADER)), USBasp)
 endif
 ifeq ($(strip $(BOOTLOADER)), lufa-ms)
     OPT_DEFS += -DBOOTLOADER_MS
-    BOOTLOADER_SIZE = 6144
+    BOOTLOADER_SIZE ?= 8192
     FIRMWARE_FORMAT = bin
 cpfirmware: lufa_warning
 .INTERMEDIATE: lufa_warning
diff --git a/keyboards/gray_studio/cod67/rules.mk b/keyboards/gray_studio/cod67/rules.mk
index 129bd624cce..2e066d99150 100644
--- a/keyboards/gray_studio/cod67/rules.mk
+++ b/keyboards/gray_studio/cod67/rules.mk
@@ -11,6 +11,9 @@ MCU = atmega32u4
 #   ATmega328P   USBasp
 BOOTLOADER = lufa-ms
 
+# This board uses the older unsafe 6k version of lufa-ms
+BOOTLOADER_SIZE = 6144
+
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/tada68/rules.mk b/keyboards/tada68/rules.mk
index a7c3cf1e357..47fdba5554d 100755
--- a/keyboards/tada68/rules.mk
+++ b/keyboards/tada68/rules.mk
@@ -11,6 +11,9 @@ MCU = atmega32u4
 #   ATmega328P   USBasp
 BOOTLOADER = lufa-ms
 
+# This board uses the older unsafe 6k version of lufa-ms
+BOOTLOADER_SIZE = 6144
+
 # Build Options
 #   change yes to no to disable
 #