diff --git a/loader/Cargo.toml b/loader/Cargo.toml
index 841a421d4..a419d1fa3 100644
--- a/loader/Cargo.toml
+++ b/loader/Cargo.toml
@@ -127,6 +127,7 @@ reset-debug = []
 usb = []
 qr = ["nalgebra"]
 updates = []
+cramium-mpw = ["cramium-hal/mpw"]
 
 # general flags
 debug-print = []