diff --git a/src/key.rs b/src/key.rs
index 9a87de3..1de7681 100644
--- a/src/key.rs
+++ b/src/key.rs
@@ -403,7 +403,7 @@ impl Decodable for PublicKey {
                 unsafe {
                     use std::mem;
                     let mut ret: [u8; constants::UNCOMPRESSED_PUBLIC_KEY_SIZE] = mem::uninitialized();
-                    for i in range(0, len) {
+                    for i in 0..len {
                         ret[i] = try!(d.read_seq_elt(i, |d| Decodable::decode(d)));
                     }
                     Ok(PublicKey(PublicKeyData::Uncompressed(ret)))
@@ -412,7 +412,7 @@ impl Decodable for PublicKey {
                 unsafe {
                     use std::mem;
                     let mut ret: [u8; constants::COMPRESSED_PUBLIC_KEY_SIZE] = mem::uninitialized();
-                    for i in range(0, len) {
+                    for i in 0..len {
                         ret[i] = try!(d.read_seq_elt(i, |d| Decodable::decode(d)));
                     }
                     Ok(PublicKey(PublicKeyData::Compressed(ret)))
diff --git a/src/macros.rs b/src/macros.rs
index 9c2b09a..dbe13a9 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -103,7 +103,7 @@ macro_rules! impl_array_newtype {
                         unsafe {
                             use std::mem;
                             let mut ret: [$ty; $len] = mem::uninitialized();
-                            for i in range(0, len) {
+                            for i in 0..len {
                                 ret[i] = try!(d.read_seq_elt(i, |d| Decodable::decode(d)));
                             }
                             Ok($thing(ret))