diff --git a/app/boards/shields/mercury/mercury.conf b/app/boards/shields/mercury/mercury.conf
index e89186cf..76eb3700 100644
--- a/app/boards/shields/mercury/mercury.conf
+++ b/app/boards/shields/mercury/mercury.conf
@@ -1,2 +1,2 @@
-# CONFIG_ZMK_SLEEP=y
+CONFIG_ZMK_SLEEP=y
 # CONFIG_ZMK_USB_LOGGING=y
\ No newline at end of file