diff --git a/src/bin/dual-iir.rs b/src/bin/dual-iir.rs
index e28465b..b90452d 100644
--- a/src/bin/dual-iir.rs
+++ b/src/bin/dual-iir.rs
@@ -1,7 +1,6 @@
 #![deny(warnings)]
 #![no_std]
 #![no_main]
-#![cfg_attr(feature = "nightly", feature(core_intrinsics))]
 
 use stm32h7xx_hal as hal;
 
diff --git a/src/bin/lockin-external.rs b/src/bin/lockin-external.rs
index 8dc9907..d3b3410 100644
--- a/src/bin/lockin-external.rs
+++ b/src/bin/lockin-external.rs
@@ -1,7 +1,6 @@
 #![deny(warnings)]
 #![no_std]
 #![no_main]
-#![cfg_attr(feature = "nightly", feature(core_intrinsics))]
 
 use stm32h7xx_hal as hal;
 
diff --git a/src/bin/lockin-internal.rs b/src/bin/lockin-internal.rs
index e14a4da..4974be2 100644
--- a/src/bin/lockin-internal.rs
+++ b/src/bin/lockin-internal.rs
@@ -1,7 +1,6 @@
 #![deny(warnings)]
 #![no_std]
 #![no_main]
-#![cfg_attr(feature = "nightly", feature(core_intrinsics))]
 
 use dsp::{iir_int, lockin::Lockin, Accu};
 use hardware::{Adc1Input, Dac0Output, Dac1Output, AFE0, AFE1};
diff --git a/src/lib.rs b/src/lib.rs
index 218e3cf..ab2623d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,5 @@
 #![no_std]
+#![cfg_attr(feature = "nightly", feature(core_intrinsics))]
 
 #[macro_use]
 extern crate log;