diff --git a/crates/xtce-gs-cli/src/main.rs b/crates/xtce-gs-cli/src/main.rs
index a47d52d..a0165c7 100644
--- a/crates/xtce-gs-cli/src/main.rs
+++ b/crates/xtce-gs-cli/src/main.rs
@@ -4,6 +4,7 @@
 //! Everything that decides anything is in [`args`] — which turns flags into an
 //! [`xtce_gs_engine::SessionConfig`] — or in [`run`], which carries one out.
 
+#![deny(missing_docs)]
 #![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic)]
 #![warn(clippy::pedantic)]
 #![allow(clippy::module_name_repetitions)]
diff --git a/crates/xtce-gs-core/src/lib.rs b/crates/xtce-gs-core/src/lib.rs
index 8993e77..f7550c1 100644
--- a/crates/xtce-gs-core/src/lib.rs
+++ b/crates/xtce-gs-core/src/lib.rs
@@ -28,6 +28,7 @@
 //! is one enum wide, and the table needs it — and only a watched parameter gets a ring. The
 //! interface decides what is watched when the operator opens a plot.
 
+#![deny(missing_docs)]
 #![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic)]
 #![warn(clippy::pedantic)]
 #![allow(clippy::module_name_repetitions)]
diff --git a/crates/xtce-gs-engine/src/lib.rs b/crates/xtce-gs-engine/src/lib.rs
index da6dd4d..d3be93a 100644
--- a/crates/xtce-gs-engine/src/lib.rs
+++ b/crates/xtce-gs-engine/src/lib.rs
@@ -34,6 +34,7 @@
 //! every real downlink has them. A recording is bytes and nothing else, so that it replays
 //! through the same source that wrote it.
 
+#![deny(missing_docs)]
 #![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic)]
 #![warn(clippy::pedantic)]
 #![allow(clippy::module_name_repetitions)]
diff --git a/crates/xtce-gs-gui/src/lib.rs b/crates/xtce-gs-gui/src/lib.rs
index baf441f..343f5ad 100644
--- a/crates/xtce-gs-gui/src/lib.rs
+++ b/crates/xtce-gs-gui/src/lib.rs
@@ -30,6 +30,7 @@
 //!   not pop up, sound, or acknowledge. A station that interrupted the operator would be a
 //!   station they mute.
 
+#![deny(missing_docs)]
 #![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic)]
 #![warn(clippy::pedantic)]
 #![allow(clippy::module_name_repetitions)]
diff --git a/crates/xtce-gs-link/src/lib.rs b/crates/xtce-gs-link/src/lib.rs
index 4fb43f9..ba327f8 100644
--- a/crates/xtce-gs-link/src/lib.rs
+++ b/crates/xtce-gs-link/src/lib.rs
@@ -40,6 +40,7 @@
 //! * **It does not panic.** It sits on a live downlink fed by hardware nobody here controls,
 //!   so every failure is a `Result` or a counter.
 
+#![deny(missing_docs)]
 #![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic)]
 #![warn(clippy::pedantic)]
 #![allow(clippy::module_name_repetitions)]