diff --git a/units/src/amount/signed.rs b/units/src/amount/signed.rs
index aece125bd..99602eca9 100644
--- a/units/src/amount/signed.rs
+++ b/units/src/amount/signed.rs
@@ -502,7 +502,7 @@ crate::internal_macros::impl_sub_assign!(SignedAmount);
 impl ops::Rem<i64> for SignedAmount {
     type Output = SignedAmount;
 
-    fn rem(self, modulus: i64) -> Self {
+    fn rem(self, modulus: i64) -> Self::Output {
         self.checked_rem(modulus).expect("SignedAmount remainder error")
     }
 }
diff --git a/units/src/amount/unsigned.rs b/units/src/amount/unsigned.rs
index e80f5c6b7..645dbe9d8 100644
--- a/units/src/amount/unsigned.rs
+++ b/units/src/amount/unsigned.rs
@@ -445,7 +445,7 @@ crate::internal_macros::impl_sub_assign!(Amount);
 impl ops::Rem<u64> for Amount {
     type Output = Amount;
 
-    fn rem(self, modulus: u64) -> Self {
+    fn rem(self, modulus: u64) -> Self::Output {
         self.checked_rem(modulus).expect("Amount remainder error")
     }
 }