diff --git a/src/lib.rs b/src/lib.rs
index f975c48..07620e2 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2149,10 +2149,7 @@ impl<const MIN_ALIGN: usize> Bump<MIN_ALIGN> {
     pub fn iter_allocated_chunks(&mut self) -> ChunkIter<'_, MIN_ALIGN> {
         // Safety: Ensured by mutable borrow of `self`.
         let raw = unsafe { self.iter_allocated_chunks_raw() };
-        ChunkIter {
-            raw,
-            bump: PhantomData,
-        }
+        ChunkIter { raw }
     }
 
     /// Returns an iterator over raw pointers to chunks of allocated memory that
@@ -2388,7 +2385,6 @@ impl<const MIN_ALIGN: usize> Bump<MIN_ALIGN> {
 #[derive(Debug)]
 pub struct ChunkIter<'a, const MIN_ALIGN: usize = 1> {
     raw: ChunkRawIter<'a, MIN_ALIGN>,
-    bump: PhantomData<&'a mut Bump>,
 }
 
 impl<'a, const MIN_ALIGN: usize> Iterator for ChunkIter<'a, MIN_ALIGN> {