diff --git a/clippy_lints/src/lib.register_all.rs b/clippy_lints/src/lib.register_all.rs
index d4f8d676c22d..8567b6b8a7e6 100644
--- a/clippy_lints/src/lib.register_all.rs
+++ b/clippy_lints/src/lib.register_all.rs
@@ -305,6 +305,7 @@ store.register_group(true, "clippy::all", Some("clippy_all"), vec![
     LintId::of(transmute::TRANSMUTE_NUM_TO_BYTES),
     LintId::of(transmute::TRANSMUTE_PTR_TO_REF),
     LintId::of(transmute::UNSOUND_COLLECTION_TRANSMUTE),
+    LintId::of(transmute::USELESS_TRANSMUTE),
     LintId::of(transmute::WRONG_TRANSMUTE),
     LintId::of(transmuting_null::TRANSMUTING_NULL),
     LintId::of(types::BORROWED_BOX),
diff --git a/clippy_lints/src/lib.register_complexity.rs b/clippy_lints/src/lib.register_complexity.rs
index d5dfcd10a668..fe8637faf975 100644
--- a/clippy_lints/src/lib.register_complexity.rs
+++ b/clippy_lints/src/lib.register_complexity.rs
@@ -90,6 +90,7 @@ store.register_group(true, "clippy::complexity", Some("clippy_complexity"), vec!
     LintId::of(transmute::TRANSMUTE_INT_TO_FLOAT),
     LintId::of(transmute::TRANSMUTE_NUM_TO_BYTES),
     LintId::of(transmute::TRANSMUTE_PTR_TO_REF),
+    LintId::of(transmute::USELESS_TRANSMUTE),
     LintId::of(types::BORROWED_BOX),
     LintId::of(types::TYPE_COMPLEXITY),
     LintId::of(types::VEC_BOX),
diff --git a/clippy_lints/src/lib.register_nursery.rs b/clippy_lints/src/lib.register_nursery.rs
index 10808af363d7..f961952991f5 100644
--- a/clippy_lints/src/lib.register_nursery.rs
+++ b/clippy_lints/src/lib.register_nursery.rs
@@ -31,7 +31,6 @@ store.register_group(true, "clippy::nursery", Some("clippy_nursery"), vec![
     LintId::of(trait_bounds::TRAIT_DUPLICATION_IN_BOUNDS),
     LintId::of(trait_bounds::TYPE_REPETITION_IN_BOUNDS),
     LintId::of(transmute::TRANSMUTE_UNDEFINED_REPR),
-    LintId::of(transmute::USELESS_TRANSMUTE),
     LintId::of(unused_rounding::UNUSED_ROUNDING),
     LintId::of(use_self::USE_SELF),
 ])
diff --git a/clippy_lints/src/transmute/mod.rs b/clippy_lints/src/transmute/mod.rs
index d2a040beb0cf..cbe1406728bc 100644
--- a/clippy_lints/src/transmute/mod.rs
+++ b/clippy_lints/src/transmute/mod.rs
@@ -59,7 +59,7 @@ declare_clippy_lint! {
     /// ```
     #[clippy::version = "pre 1.29.0"]
     pub USELESS_TRANSMUTE,
-    nursery,
+    complexity,
     "transmutes that have the same to and from types or could be a cast/coercion"
 }
 
diff --git a/tests/ui/transmute_undefined_repr.rs b/tests/ui/transmute_undefined_repr.rs
index b06ed4a91737..ebcaa7a84cfb 100644
--- a/tests/ui/transmute_undefined_repr.rs
+++ b/tests/ui/transmute_undefined_repr.rs
@@ -1,5 +1,5 @@
 #![warn(clippy::transmute_undefined_repr)]
-#![allow(clippy::unit_arg, clippy::transmute_ptr_to_ref)]
+#![allow(clippy::unit_arg, clippy::transmute_ptr_to_ref, clippy::useless_transmute)]
 
 use core::any::TypeId;
 use core::ffi::c_void;