diff --git a/src/lib.rs b/src/lib.rs
index 01d9ae3..d98182e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,6 +6,7 @@ use embedded_hal::{
 };
 
 use core::cell;
+use core::mem::size_of;
 
 use cortex_m;
 use cortex_m::asm::nop;
@@ -63,7 +64,6 @@ where
 {
 	type Error = Error<E>;
 	fn select_chip(&mut self, chip: u8) -> Result<(), Self::Error> {
-		hprintln!("Selected chip {}.", chip);
 		match chip & (1 << 0) {
 			0 => self.chip_select.0.set_low(),
 			_ => self.chip_select.0.set_high(),