diff --git a/ruma-common/src/lib.rs b/ruma-common/src/lib.rs
index ea76d7a9..73e4467a 100644
--- a/ruma-common/src/lib.rs
+++ b/ruma-common/src/lib.rs
@@ -1,6 +1,6 @@
 //! Common types for other ruma crates.
 
-#![warn(missing_docs)]
+#![warn(missing_docs, missing_debug_implementations)]
 
 pub mod presence;
 pub mod push;