diff --git a/rm/rm.rs b/rm/rm.rs
index fea7f7856..e6e55897f 100644
--- a/rm/rm.rs
+++ b/rm/rm.rs
@@ -15,27 +15,13 @@ use std::os;
 use std::io::{print,stdin,stderr,stdio,fs,BufferedReader,io_error};
 use extra::getopts::groups;
 
+#[deriving(Eq)]
 enum InteractiveMode {
     InteractiveNone,
     InteractiveOnce,
     InteractiveAlways
 }
 
-impl Eq for InteractiveMode {
-    fn eq(&self, other: &InteractiveMode) -> bool {
-        match (*self, *other) {
-            (InteractiveNone, InteractiveNone) |
-            (InteractiveOnce, InteractiveOnce) |
-            (InteractiveAlways, InteractiveAlways) => true,
-            _ => false
-        }
-    }
-
-    fn ne(&self, other: &InteractiveMode) -> bool {
-        !self.eq(other)
-    }
-}
-
 fn main() {
     let args = os::args();
     let program = args[0].clone();