diff --git a/keyboards/framework/rules.mk b/keyboards/framework/rules.mk
index 54ff82fc83..6f62193729 100644
--- a/keyboards/framework/rules.mk
+++ b/keyboards/framework/rules.mk
@@ -19,3 +19,5 @@ SRC += matrix.c analog.c
 SRC += dyn_serial.c factory.c
 
 DEFAULT_FOLDER = framework/ansi
+
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE