diff --git a/keyboards/planck/keymaps/bone2planck/Makefile b/keyboards/planck/keymaps/bone2planck/Makefile
index 581e08cd02..cf2c31f0fb 100644
--- a/keyboards/planck/keymaps/bone2planck/Makefile
+++ b/keyboards/planck/keymaps/bone2planck/Makefile
@@ -1,4 +1,6 @@
-
+# Please remove if no longer applicable
+$(warning THIS FILE MAY BE TOO LARGE FOR YOUR KEYBOARD)
+$(warning Please disable some options in the Makefile to resolve)
 
 # Build Options
 #   change to "no" to disable the options, or define them in the Makefile in 
diff --git a/keyboards/planck/keymaps/brandon/Makefile b/keyboards/planck/keymaps/brandon/Makefile
index 581e08cd02..cf2c31f0fb 100644
--- a/keyboards/planck/keymaps/brandon/Makefile
+++ b/keyboards/planck/keymaps/brandon/Makefile
@@ -1,4 +1,6 @@
-
+# Please remove if no longer applicable
+$(warning THIS FILE MAY BE TOO LARGE FOR YOUR KEYBOARD)
+$(warning Please disable some options in the Makefile to resolve)
 
 # Build Options
 #   change to "no" to disable the options, or define them in the Makefile in 
diff --git a/keyboards/planck/keymaps/impossible/Makefile b/keyboards/planck/keymaps/impossible/Makefile
index 581e08cd02..cf2c31f0fb 100644
--- a/keyboards/planck/keymaps/impossible/Makefile
+++ b/keyboards/planck/keymaps/impossible/Makefile
@@ -1,4 +1,6 @@
-
+# Please remove if no longer applicable
+$(warning THIS FILE MAY BE TOO LARGE FOR YOUR KEYBOARD)
+$(warning Please disable some options in the Makefile to resolve)
 
 # Build Options
 #   change to "no" to disable the options, or define them in the Makefile in 
diff --git a/keyboards/planck/keymaps/jeebak/Makefile b/keyboards/planck/keymaps/jeebak/Makefile
index 581e08cd02..cf2c31f0fb 100644
--- a/keyboards/planck/keymaps/jeebak/Makefile
+++ b/keyboards/planck/keymaps/jeebak/Makefile
@@ -1,4 +1,6 @@
-
+# Please remove if no longer applicable
+$(warning THIS FILE MAY BE TOO LARGE FOR YOUR KEYBOARD)
+$(warning Please disable some options in the Makefile to resolve)
 
 # Build Options
 #   change to "no" to disable the options, or define them in the Makefile in