diff --git a/rust/cpp.rs b/rust/cpp.rs
index aafb799dba..8c1e04c8a9 100644
--- a/rust/cpp.rs
+++ b/rust/cpp.rs
@@ -9,7 +9,7 @@
 
 use crate::ProtoStr;
 use crate::__internal::{Private, PtrAndLen, RawArena, RawMap, RawMessage, RawRepeatedField};
-use crate::{Mut, Proxied, ProxiedInRepeated, Repeated, View};
+use crate::{Mut, Proxied, ProxiedInRepeated, Repeated, SettableValue, View};
 use core::fmt::Debug;
 use paste::paste;
 use std::alloc::Layout;
@@ -139,6 +139,15 @@ impl fmt::Debug for SerializedData {
     }
 }
 
+impl SettableValue<[u8]> for SerializedData {
+    fn set_on<'msg>(self, _private: Private, mut mutator: Mut<'msg, [u8]>)
+    where
+        [u8]: 'msg,
+    {
+        mutator.set(self.as_ref())
+    }
+}
+
 pub type BytesPresentMutData<'msg> = crate::vtable::RawVTableOptionalMutatorData<'msg, [u8]>;
 pub type BytesAbsentMutData<'msg> = crate::vtable::RawVTableOptionalMutatorData<'msg, [u8]>;
 pub type InnerBytesMut<'msg> = crate::vtable::RawVTableMutator<'msg, [u8]>;
diff --git a/rust/test/shared/serialization_test.rs b/rust/test/shared/serialization_test.rs
index 0515223fb7..2ac49b923d 100644
--- a/rust/test/shared/serialization_test.rs
+++ b/rust/test/shared/serialization_test.rs
@@ -37,3 +37,13 @@ fn deserialize_error() {
     let data = b"not a serialized proto";
     assert!(msg.deserialize(&*data).is_err());
 }
+
+#[test]
+fn set_bytes_with_serialized_data() {
+    let mut msg = TestAllTypes::new();
+    msg.optional_int64_mut().set(42);
+    msg.optional_bool_mut().set(true);
+    let mut msg2 = TestAllTypes::new();
+    msg2.optional_bytes_mut().set(msg.serialize());
+    assert_that!(msg2.optional_bytes(), eq(msg.serialize().as_ref()));
+}
diff --git a/rust/upb.rs b/rust/upb.rs
index 8a3e0b905f..7895bee95c 100644
--- a/rust/upb.rs
+++ b/rust/upb.rs
@@ -7,10 +7,10 @@
 
 //! UPB FFI wrapper code for use by Rust Protobuf.
 
-use crate::ProtoStr;
 use crate::__internal::{Private, PtrAndLen, RawArena, RawMap, RawMessage, RawRepeatedField};
 use crate::{
-    Mut, Proxied, ProxiedInRepeated, Repeated, RepeatedMut, RepeatedView, View, ViewProxy,
+    Mut, ProtoStr, Proxied, ProxiedInRepeated, Repeated, RepeatedMut, RepeatedView, SettableValue,
+    View, ViewProxy,
 };
 use core::fmt::Debug;
 use paste::paste;
@@ -217,6 +217,15 @@ impl fmt::Debug for SerializedData {
     }
 }
 
+impl SettableValue<[u8]> for SerializedData {
+    fn set_on<'msg>(self, _private: Private, mut mutator: Mut<'msg, [u8]>)
+    where
+        [u8]: 'msg,
+    {
+        mutator.set(self.as_ref())
+    }
+}
+
 // TODO: Investigate replacing this with direct access to UPB bits.
 pub type BytesPresentMutData<'msg> = crate::vtable::RawVTableOptionalMutatorData<'msg, [u8]>;
 pub type BytesAbsentMutData<'msg> = crate::vtable::RawVTableOptionalMutatorData<'msg, [u8]>;