diff --git a/rtic-channel/src/lib.rs b/rtic-channel/src/lib.rs
index a7098ee245..166015fca5 100644
--- a/rtic-channel/src/lib.rs
+++ b/rtic-channel/src/lib.rs
@@ -2,6 +2,7 @@
 
 #![no_std]
 #![deny(missing_docs)]
+//deny_warnings_placeholder_for_ci
 
 use core::{
     cell::UnsafeCell,
diff --git a/rtic-monotonics/src/lib.rs b/rtic-monotonics/src/lib.rs
index ce30c36b19..1e23088b48 100644
--- a/rtic-monotonics/src/lib.rs
+++ b/rtic-monotonics/src/lib.rs
@@ -3,6 +3,7 @@
 #![no_std]
 #![no_main]
 #![deny(missing_docs)]
+//deny_warnings_placeholder_for_ci
 #![allow(incomplete_features)]
 #![feature(async_fn_in_trait)]
 
diff --git a/rtic-time/src/lib.rs b/rtic-time/src/lib.rs
index 78ece1df20..eeecd86c2d 100644
--- a/rtic-time/src/lib.rs
+++ b/rtic-time/src/lib.rs
@@ -2,6 +2,7 @@
 
 #![no_std]
 #![deny(missing_docs)]
+//deny_warnings_placeholder_for_ci
 #![allow(incomplete_features)]
 #![feature(async_fn_in_trait)]