diff --git a/serde/src/lib.rs b/serde/src/lib.rs
index fe40eb1c..a2727708 100644
--- a/serde/src/lib.rs
+++ b/serde/src/lib.rs
@@ -118,6 +118,7 @@
         zero_prefixed_literal,
         // correctly used
         enum_glob_use,
+        map_err_ignore,
         wildcard_imports,
         // not practical
         needless_pass_by_value,
diff --git a/serde_derive/src/lib.rs b/serde_derive/src/lib.rs
index 9307ae81..33b49dec 100644
--- a/serde_derive/src/lib.rs
+++ b/serde_derive/src/lib.rs
@@ -38,6 +38,7 @@
     clippy::filter_map,
     clippy::indexing_slicing,
     clippy::items_after_statements,
+    clippy::map_err_ignore,
     clippy::match_same_arms,
     clippy::module_name_repetitions,
     clippy::must_use_candidate,