diff --git a/src/circuit/blake2s.rs b/src/circuit/blake2s.rs
index a78f3cf..93af806 100644
--- a/src/circuit/blake2s.rs
+++ b/src/circuit/blake2s.rs
@@ -343,7 +343,7 @@ mod test {
 
         let mut out = out.into_iter();
         for b in expected.into_iter() {
-            for i in (0..8).rev() {
+            for i in 0..8 {
                 let c = out.next().unwrap().get_value().unwrap();
 
                 assert_eq!(c, (b >> i) & 1u8 == 1u8);
@@ -405,7 +405,7 @@ mod test {
             let mut input_bits = vec![];
 
             for (byte_i, input_byte) in data.into_iter().enumerate() {
-                for bit_i in (0..8).rev() {
+                for bit_i in 0..8 {
                     let cs = cs.namespace(|| format!("input bit {} {}", byte_i, bit_i));
 
                     input_bits.push(AllocatedBit::alloc(cs, Some((input_byte >> bit_i) & 1u8 == 1u8)).unwrap().into());
@@ -417,7 +417,7 @@ mod test {
             assert!(cs.is_satisfied());
 
             let mut s = hash_result.as_ref().iter()
-                                            .flat_map(|&byte| (0..8).rev().map(move |i| (byte >> i) & 1u8 == 1u8));
+                                            .flat_map(|&byte| (0..8).map(move |i| (byte >> i) & 1u8 == 1u8));
 
             for b in r {
                 match b {
diff --git a/src/circuit/uint32.rs b/src/circuit/uint32.rs
index e254132..fb0bfa9 100644
--- a/src/circuit/uint32.rs
+++ b/src/circuit/uint32.rs
@@ -114,10 +114,7 @@ impl UInt32 {
 
     /// Turns this `UInt32` into its little-endian byte order representation.
     pub fn into_bits(&self) -> Vec<Boolean> {
-        self.bits.chunks(8)
-                 .flat_map(|v| v.iter().rev())
-                 .cloned()
-                 .collect()
+        self.bits.clone()
     }
 
     /// Converts a little-endian byte order representation of bits into a
@@ -126,10 +123,7 @@ impl UInt32 {
     {
         assert_eq!(bits.len(), 32);
 
-        let new_bits = bits.chunks(8)
-                           .flat_map(|v| v.iter().rev())
-                           .cloned()
-                           .collect::<Vec<_>>();
+        let new_bits = bits.to_vec();
 
         let mut value = Some(0u32);
         for b in new_bits.iter().rev() {