diff --git a/src/fields.rs b/src/fields.rs
index 8e11528..ccad57a 100644
--- a/src/fields.rs
+++ b/src/fields.rs
@@ -12,6 +12,10 @@ pub use fq::*;
 fn u64_to_u32(limbs: &[u64]) -> alloc::vec::Vec<u32> {
     limbs
         .iter()
-        .flat_map(|limb| Some((limb & 0xFFFF_FFFF) as u32).into_iter().chain(Some((limb >> 32) as u32)))
+        .flat_map(|limb| {
+            Some((limb & 0xFFFF_FFFF) as u32)
+                .into_iter()
+                .chain(Some((limb >> 32) as u32))
+        })
         .collect()
 }