diff --git a/src/utility/bitmap.rs b/src/utility/bitmap.rs
index d66dd2e..4af76a1 100644
--- a/src/utility/bitmap.rs
+++ b/src/utility/bitmap.rs
@@ -20,15 +20,13 @@ impl BitMap {
     /// ### Parameters
     ///	- **nitems** is the number of bits in the bitmap.
     ///----------------------------------------------------------------------
-    pub fn init_bitmap(&self, n_items: usize) -> BitMap {
+    pub fn init_bitmap(n_items: usize) -> BitMap {
         let mut tmp: Vec<u32>;
         BitMap{
             num_bits: n_items,
             num_words: (n_items + SECTOR_SIZE as usize -1) / SECTOR_SIZE as usize,
             map: tmp,
-        };
-
-        *self
+        }
     }
 
     /// Set the "nth" bit in a bitmap.