1 files changed, 0 insertions, 5 deletions
diff --git a/src/libstd/num/mod.rs b/src/libstd/num/mod.rs
index 8dbec0f63c6..d66d13657fc 100644
--- a/src/libstd/num/mod.rs
+++ b/src/libstd/num/mod.rs
@@ -1079,11 +1079,6 @@ pub fn pow_with_uint<T:NumCast+One+Zero+Div<T,T>+Mul<T,T>>(radix: uint, pow: uin
     total
 }
 
-impl<T: Zero + 'static> Zero for @mut T {
-    fn zero() -> @mut T { @mut Zero::zero() }
-    fn is_zero(&self) -> bool { (**self).is_zero() }
-}
-
 impl<T: Zero + 'static> Zero for @T {
     fn zero() -> @T { @Zero::zero() }
     fn is_zero(&self) -> bool { (**self).is_zero() }