4 files changed, 12 insertions, 7 deletions
diff --git a/keyboards/lets_split/lets_split.h b/keyboards/lets_split/lets_split.h
index 476e7fd2a..d9cfa35a2 100644
--- a/keyboards/lets_split/lets_split.h
+++ b/keyboards/lets_split/lets_split.h
@@ -3,7 +3,11 @@
 
 #include "quantum.h"
 
-#include QMK_SUBPROJECT_H
+#ifdef KEYBOARD_lets_split_rev1
+    #include "rev1.h"
+#else
+    #include "rev2.h"
+#endif
 
 // Used to create a keymap using only KC_ prefixed keys
 #define KC_KEYMAP( \
diff --git a/keyboards/lets_split/readme.md b/keyboards/lets_split/readme.md
index 300722a1b..c9202de63 100644
--- a/keyboards/lets_split/readme.md
+++ b/keyboards/lets_split/readme.md
@@ -19,7 +19,7 @@ There is additional information there about flashing and adding RGB underglow.
 Download or clone the `qmk_firmware` repo and navigate to its top level directory. Once your build environment is setup, you'll be able to generate the default .hex using:
 
 ```
-$ make lets_split-rev2-default
+$ make lets_split/rev2:default
 ```
 
 You will see a lot of output and if everything worked correctly you will see the built hex file:
@@ -32,7 +32,7 @@ If you would like to use one of the alternative keymaps, or create your own, cop
 
 
 ```
-$ make lets_split-rev2-YOUR_KEYMAP_NAME
+$ make lets_split/rev2:YOUR_KEYMAP_NAME
 ```
 
 If everything worked correctly you will see a file:
@@ -115,8 +115,8 @@ not be very difficult to adapt it to support more if required.
 
 Flashing
 -------
-From the top level `qmk_firmware` directory run `make KEYBOARD-SUBPROJECT-KEYMAP-avrdude` for automatic serial port resolution and flashing.
-Example: `make lets_split-rev2-default-avrdude`
+From the top level `qmk_firmware` directory run `make KEYBOARD:KEYMAP:avrdude` for automatic serial port resolution and flashing.
+Example: `make lets_split/rev2:default:avrdude`
 
 
 Choosing which board to plug the USB cable into (choosing Master)
diff --git a/keyboards/lets_split/rules.mk b/keyboards/lets_split/rules.mk
index 7b7224fd4..1bbc0367f 100644
--- a/keyboards/lets_split/rules.mk
+++ b/keyboards/lets_split/rules.mk
@@ -75,4 +75,6 @@ SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
 
 CUSTOM_MATRIX = yes
 
-LAYOUTS = ortho_4x12
-\ No newline at end of file
+LAYOUTS = ortho_4x12
+
+DEFAULT_FOLDER = lets_split/rev2
+\ No newline at end of file
diff --git a/keyboards/lets_split/subproject.mk b/keyboards/lets_split/subproject.mk
deleted file mode 100644
index 7c9b39598..000000000
--- a/keyboards/lets_split/subproject.mk
+++ /dev/null
@@ -1 +0,0 @@
-SUBPROJECT_DEFAULT = rev2