diff --git a/vm-allocator/src/lib.rs b/vm-allocator/src/lib.rs
index a891efcb4..4a14420dd 100644
--- a/vm-allocator/src/lib.rs
+++ b/vm-allocator/src/lib.rs
@@ -6,6 +6,7 @@
 // found in the LICENSE-BSD-3-Clause file.
 //
 // SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause
+#![deny(missing_docs)]
 
 //! Manages system resources that can be allocated to VMs and their devices.