diff --git a/src/lib.rs b/src/lib.rs
index 99a3d5c..07c8b57 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -345,8 +345,8 @@ impl Iterator for IntoIter {
 
 impl ParallelExtend<u64> for BitSet {
     fn par_extend<I>(&mut self, par_iter: I)
-    where I:
-        IntoParallelIterator<Item = u64>
+    where
+        I: IntoParallelIterator<Item = u64>,
     {
         let list = par_iter
             .into_par_iter()
@@ -369,7 +369,7 @@ impl ParallelExtend<u64> for BitSet {
 impl FromParallelIterator<u64> for BitSet {
     fn from_par_iter<I>(par_iter: I) -> Self
     where
-        I: IntoParallelIterator<Item = u64>
+        I: IntoParallelIterator<Item = u64>,
     {
         let mut set = BitSet::new();
         set.par_extend(par_iter);