diff --git a/ethereum/circuits/lib/src/misc/arrays.nr b/ethereum/circuits/lib/src/misc/arrays.nr
index 7d021916..77bfa0f2 100644
--- a/ethereum/circuits/lib/src/misc/arrays.nr
+++ b/ethereum/circuits/lib/src/misc/arrays.nr
@@ -72,11 +72,3 @@ pub fn sub_array_equals<TItem, SUBARRAY_LEN, ARRAY_LEN>(
     }
     result
 }
-
-pub fn slice_to_array<LENGTH>(slice: [u8]) -> [u8; LENGTH] {
-    let mut array = [0; LENGTH];
-    for i in 0..LENGTH {
-        array[i] = slice[i];
-    }
-    array
-}
diff --git a/ethereum/circuits/lib/src/misc/bytes32.nr b/ethereum/circuits/lib/src/misc/bytes32.nr
index 85dc6825..527fe837 100644
--- a/ethereum/circuits/lib/src/misc/bytes32.nr
+++ b/ethereum/circuits/lib/src/misc/bytes32.nr
@@ -1,4 +1,4 @@
-use crate::misc::arrays::{memcpy, slice_to_array};
+use crate::misc::arrays::memcpy;
 use crate::misc::types::Bytes32;
 
 pub fn address_to_bytes32(address: [u8; 20]) -> Bytes32 {
@@ -11,5 +11,5 @@ pub fn address_to_bytes32(address: [u8; 20]) -> Bytes32 {
 
 pub fn field_to_bytes32(value: Field) -> [u8; 32] {
     let byte_slice = value.to_be_bytes(32);
-    slice_to_array(byte_slice)
+    byte_slice.as_array()
 }