diff --git a/test_suite/tests/test_gen.rs b/test_suite/tests/test_gen.rs
index 97b0a96e..055fae60 100644
--- a/test_suite/tests/test_gen.rs
+++ b/test_suite/tests/test_gen.rs
@@ -730,6 +730,7 @@ fn test_gen() {
 
     #[derive(Serialize)]
     #[repr(packed)]
+    #[allow(dead_code)]
     struct Packed {
         x: u8,
         y: u16,
@@ -761,6 +762,7 @@ fn test_gen() {
     }
 
     #[derive(Serialize)]
+    #[allow(dead_code)]
     struct Struct {
         #[serde(serialize_with = "vec_first_element")]
         vec: Vec<Self>,
diff --git a/test_suite/tests/test_macros.rs b/test_suite/tests/test_macros.rs
index 0d6472df..7bd7a94e 100644
--- a/test_suite/tests/test_macros.rs
+++ b/test_suite/tests/test_macros.rs
@@ -2234,24 +2234,28 @@ fn test_internally_tagged_newtype_variant_containing_unit_struct() {
 fn test_packed_struct_can_derive_serialize() {
     #[derive(Copy, Clone, Serialize)]
     #[repr(packed, C)]
+    #[allow(dead_code)]
     struct PackedC {
         t: f32,
     }
 
     #[derive(Copy, Clone, Serialize)]
     #[repr(C, packed)]
+    #[allow(dead_code)]
     struct CPacked {
         t: f32,
     }
 
     #[derive(Copy, Clone, Serialize)]
     #[repr(C, packed(2))]
+    #[allow(dead_code)]
     struct CPacked2 {
         t: f32,
     }
 
     #[derive(Copy, Clone, Serialize)]
     #[repr(packed(2), C)]
+    #[allow(dead_code)]
     struct Packed2C {
         t: f32,
     }