diff --git a/keyboards/lets_split/rev1/rev1.h b/keyboards/lets_split/rev1/rev1.h
index 1d38368f..e8785d5c 100644
--- a/keyboards/lets_split/rev1/rev1.h
+++ b/keyboards/lets_split/rev1/rev1.h
@@ -25,4 +25,6 @@
 		{ R30, R31, R32, R33, R34, R35 } \
 	}
 
+#define LAYOUT_ortho_4x12 KEYMAP
+	
 #endif
\ No newline at end of file