diff --git a/units/src/amount/signed.rs b/units/src/amount/signed.rs
index 4ee898d2c..0f548ccdc 100644
--- a/units/src/amount/signed.rs
+++ b/units/src/amount/signed.rs
@@ -390,7 +390,7 @@ impl ops::Add for SignedAmount {
 }
 
 impl ops::AddAssign for SignedAmount {
-    fn add_assign(&mut self, other: SignedAmount) { *self = *self + other }
+    fn add_assign(&mut self, rhs: SignedAmount) { *self = *self + rhs }
 }
 
 impl ops::Sub for SignedAmount {
@@ -402,7 +402,7 @@ impl ops::Sub for SignedAmount {
 }
 
 impl ops::SubAssign for SignedAmount {
-    fn sub_assign(&mut self, other: SignedAmount) { *self = *self - other }
+    fn sub_assign(&mut self, rhs: SignedAmount) { *self = *self - rhs }
 }
 
 impl ops::Rem<i64> for SignedAmount {
diff --git a/units/src/amount/unsigned.rs b/units/src/amount/unsigned.rs
index 6bd45f14b..5d31bb055 100644
--- a/units/src/amount/unsigned.rs
+++ b/units/src/amount/unsigned.rs
@@ -459,7 +459,7 @@ impl ops::Add for Amount {
 }
 
 impl ops::AddAssign for Amount {
-    fn add_assign(&mut self, other: Amount) { *self = *self + other }
+    fn add_assign(&mut self, rhs: Amount) { *self = *self + rhs }
 }
 
 impl ops::Sub for Amount {
@@ -471,7 +471,7 @@ impl ops::Sub for Amount {
 }
 
 impl ops::SubAssign for Amount {
-    fn sub_assign(&mut self, other: Amount) { *self = *self - other }
+    fn sub_assign(&mut self, rhs: Amount) { *self = *self - rhs }
 }
 
 impl ops::Rem<u64> for Amount {
diff --git a/units/src/fee_rate.rs b/units/src/fee_rate.rs
index b605b14b1..65fd58e77 100644
--- a/units/src/fee_rate.rs
+++ b/units/src/fee_rate.rs
@@ -194,19 +194,19 @@ impl Add for FeeRate {
 impl Add<FeeRate> for &FeeRate {
     type Output = FeeRate;
 
-    fn add(self, other: FeeRate) -> Self::Output { FeeRate(self.0 + other.0) }
+    fn add(self, rhs: FeeRate) -> Self::Output { FeeRate(self.0 + rhs.0) }
 }
 
 impl Add<&FeeRate> for FeeRate {
     type Output = FeeRate;
 
-    fn add(self, other: &FeeRate) -> Self::Output { FeeRate(self.0 + other.0) }
+    fn add(self, rhs: &FeeRate) -> Self::Output { FeeRate(self.0 + rhs.0) }
 }
 
 impl<'a> Add<&'a FeeRate> for &FeeRate {
     type Output = FeeRate;
 
-    fn add(self, other: &'a FeeRate) -> Self::Output { FeeRate(self.0 + other.0) }
+    fn add(self, rhs: &'a FeeRate) -> Self::Output { FeeRate(self.0 + rhs.0) }
 }
 
 impl Sub for FeeRate {
@@ -218,19 +218,19 @@ impl Sub for FeeRate {
 impl Sub<FeeRate> for &FeeRate {
     type Output = FeeRate;
 
-    fn sub(self, other: FeeRate) -> Self::Output { FeeRate(self.0 - other.0) }
+    fn sub(self, rhs: FeeRate) -> Self::Output { FeeRate(self.0 - rhs.0) }
 }
 
 impl Sub<&FeeRate> for FeeRate {
     type Output = FeeRate;
 
-    fn sub(self, other: &FeeRate) -> Self::Output { FeeRate(self.0 - other.0) }
+    fn sub(self, rhs: &FeeRate) -> Self::Output { FeeRate(self.0 - rhs.0) }
 }
 
 impl<'a> Sub<&'a FeeRate> for &FeeRate {
     type Output = FeeRate;
 
-    fn sub(self, other: &'a FeeRate) -> Self::Output { FeeRate(self.0 - other.0) }
+    fn sub(self, rhs: &'a FeeRate) -> Self::Output { FeeRate(self.0 - rhs.0) }
 }
 
 /// Computes the ceiling so that the fee computation is conservative.