diff --git a/ringbuf.c b/ringbuf.c
index d0b4621..81c87c0 100644
--- a/ringbuf.c
+++ b/ringbuf.c
@@ -105,12 +105,12 @@ rb_push_many(struct RingBuf *rb, const void *items, MEMCPY_T memcpy_fn,
 }
 
 enum ReadResult
-rb_pop_front(struct RingBuf *rb, void *item)
+rb_pop_front(struct RingBuf *rb, void *item, MEMCPY_T memcpy_fn)
 {
   if(rb->count == 0)
     return Empty;
 
-  memcpy(item, rb->read_head, rb->struct_size);
+  memcpy_fn(item, rb->read_head, rb->struct_size);
 
   // Advance the read head
   rb->read_head = (char *)rb->read_head + rb->struct_size;
diff --git a/ringbuf.h b/ringbuf.h
index f374bac..bd1626b 100644
--- a/ringbuf.h
+++ b/ringbuf.h
@@ -77,7 +77,7 @@ enum WriteResult rb_push_many(struct RingBuf *rb, const void *items,
  * @param item The item to read into
  * @return ReadResult
  */
-enum ReadResult rb_pop_front(struct RingBuf *rb, void *item);
+enum ReadResult rb_pop_front(struct RingBuf *rb, void *item, MEMCPY_T memcpy_fn);
 
 /**
  * @brief Free the ring buffer