diff --git a/src/form_urlencoded.rs b/src/form_urlencoded.rs
index 6e177e06c..377e29bee 100644
--- a/src/form_urlencoded.rs
+++ b/src/form_urlencoded.rs
@@ -51,7 +51,7 @@ pub fn parse_bytes(input: &[u8], encoding_override: Option<EncodingRef>,
             }
         } else {
             let (name, value) = match piece.position_elem(&b'=') {
-                Some(position) => (piece.slice_to(position), piece.slice_from(position + 1)),
+                Some(position) => (piece[..position], piece[position + 1..]),
                 None => if isindex { ([].as_slice(), piece) } else { (piece, [].as_slice()) }
             };
             let name = replace_plus(name);
diff --git a/src/lib.rs b/src/lib.rs
index f41fd2166..1ca5e61a7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -116,8 +116,8 @@ assert!(css_url.serialize() == "http://servo.github.io/rust-url/main.css".to_str
 
 */
 
-
 #![feature(macro_rules, default_type_params)]
+#![feature(slicing_syntax)]
 
 extern crate encoding;
 extern crate serialize;
@@ -991,7 +991,7 @@ impl FromUrlPath for path::windows::Path {
             return Err(())
         }
         let mut bytes = prefix.as_bytes().to_vec();
-        for path_part in path.slice_from(1).iter() {
+        for path_part in path[1..].iter() {
             bytes.push(b'\\');
             percent_decode_to(path_part.as_bytes(), &mut bytes);
         }