diff --git a/arch/src/x86_64/mod.rs b/arch/src/x86_64/mod.rs
index 995ed19bc..aa6945d99 100644
--- a/arch/src/x86_64/mod.rs
+++ b/arch/src/x86_64/mod.rs
@@ -124,9 +124,11 @@ impl SgxEpcRegion {
 #[derive(Copy, Clone, Default)]
 struct StartInfoWrapper(hvm_start_info);
 
+#[cfg_attr(fuzzing, allow(dead_code))]
 #[derive(Copy, Clone, Default)]
 struct MemmapTableEntryWrapper(hvm_memmap_table_entry);
 
+#[cfg_attr(fuzzing, allow(dead_code))]
 #[derive(Copy, Clone, Default)]
 struct ModlistEntryWrapper(hvm_modlist_entry);
 
@@ -142,6 +144,7 @@ unsafe impl ByteValued for ModlistEntryWrapper {}
 // *    the type that is implementing the trait is foreign or
 // *    all of the parameters being passed to the trait (if there are any) are also foreign
 // is prohibited.
+#[cfg_attr(fuzzing, allow(dead_code))]
 #[derive(Copy, Clone, Default)]
 struct BootParamsWrapper(boot_params);