diff --git a/src/blockchain.rs b/src/blockchain.rs
index d87623f..784a8df 100644
--- a/src/blockchain.rs
+++ b/src/blockchain.rs
@@ -21,18 +21,17 @@ impl BlockChain {
 
         let chain = vec![genesis_block.clone()];
 
-        let blockchain = BlockChain {
+        BlockChain {
             genesis_block,
             chain,
             difficulty,
-        };
-        blockchain
+        }
     }
 
     pub fn add_block(&mut self) {
         let new_block = Block::new(
             self.chain.len() as u64,
-            self.chain[&self.chain.len() - 1].previous_hash.clone(),
+            self.chain[&self.chain.len() - 1].hash.clone(),
         )
         .mine(self.clone());
         self.chain.push(new_block);
diff --git a/src/main.rs b/src/main.rs
index 27c4852..719237d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -10,6 +10,9 @@ fn main() {
     let mut blockchain = BlockChain::new(difficulty);
     let time = Instant::now();
     BlockChain::add_block(&mut blockchain);
+    BlockChain::add_block(&mut blockchain);
+    BlockChain::add_block(&mut blockchain);
+    BlockChain::add_block(&mut blockchain);
     println!(
         "\t ⛏️⛏️⛏️    | Mined |   ⛏️⛏️⛏️\n\n\tElapsed: {:?}\n\n{:#?}",
         time.elapsed(),