diff --git a/der/src/asn1/integer/int.rs b/der/src/asn1/integer/int.rs
index 0da6c93de..76fc5aba7 100644
--- a/der/src/asn1/integer/int.rs
+++ b/der/src/asn1/integer/int.rs
@@ -3,7 +3,7 @@
 use super::{is_highest_bit_set, uint, value_cmp};
 use crate::{
     AnyRef, BytesRef, DecodeValue, EncodeValue, Error, ErrorKind, FixedTag, Header, Length, Reader,
-    Result, Tag, ValueOrd, Writer, ord::OrdIsValueOrd,
+    Result, Tag, ValueOrd, Writer, ord::OrdIsValueOrd, referenced::OwnedToRef,
 };
 use core::cmp::Ordering;
 
@@ -180,6 +180,16 @@ impl FixedTag for IntRef<'_> {
 
 impl OrdIsValueOrd for IntRef<'_> {}
 
+impl<'a> OwnedToRef for IntRef<'a> {
+    type Borrowed<'b>
+        = IntRef<'a>
+    where
+        'a: 'b;
+    fn owned_to_ref(&self) -> Self::Borrowed<'a> {
+        *self
+    }
+}
+
 #[cfg(feature = "alloc")]
 mod allocating {
     use super::{IntRef, strip_leading_ones, validate_canonical};
diff --git a/der/src/asn1/integer/uint.rs b/der/src/asn1/integer/uint.rs
index c0b6f87c9..de046046d 100644
--- a/der/src/asn1/integer/uint.rs
+++ b/der/src/asn1/integer/uint.rs
@@ -3,7 +3,7 @@
 use super::value_cmp;
 use crate::{
     AnyRef, BytesRef, DecodeValue, EncodeValue, Error, ErrorKind, FixedTag, Header, Length, Reader,
-    Result, Tag, ValueOrd, Writer, ord::OrdIsValueOrd,
+    Result, Tag, ValueOrd, Writer, ord::OrdIsValueOrd, referenced::OwnedToRef,
 };
 use core::cmp::Ordering;
 
@@ -169,6 +169,16 @@ impl FixedTag for UintRef<'_> {
 
 impl OrdIsValueOrd for UintRef<'_> {}
 
+impl<'a> OwnedToRef for UintRef<'a> {
+    type Borrowed<'b>
+        = UintRef<'a>
+    where
+        'a: 'b;
+    fn owned_to_ref(&self) -> Self::Borrowed<'a> {
+        *self
+    }
+}
+
 #[cfg(feature = "alloc")]
 mod allocating {
     use super::{UintRef, decode_to_slice, encoded_len, strip_leading_zeroes};