diff --git a/src/config/loader.rs b/src/config/loader.rs
index 889fccd..ba42a97 100644
--- a/src/config/loader.rs
+++ b/src/config/loader.rs
@@ -11,6 +11,5 @@ pub fn load_config(config_path: &str) -> Config {
             eprintln!("Error loading config file: {}", e);
         }
     }
-
-    return settings;
+    settings
 }
diff --git a/src/search/engine.rs b/src/search/engine.rs
index 0f66406..ef2e594 100644
--- a/src/search/engine.rs
+++ b/src/search/engine.rs
@@ -1,15 +1,10 @@
 use bincode::{deserialize_from, serialize_into};
-use serde::{Deserialize, Serialize};
 use std::collections::{BTreeMap, HashMap};
 use std::f64;
 use std::fs::File;
 use std::io::{BufReader, BufWriter};
 
-#[derive(Serialize, Deserialize)]
-struct SavedIndex {
-    index_btree_map: BTreeMap<String, HashMap<String, i32>>,
-    documents_btree_map: BTreeMap<String, String>,
-}
+use crate::types::index;
 
 fn update_url_scores(old: &mut HashMap<String, f64>, new: &HashMap<String, f64>) {
     for (url, score) in new {
@@ -203,8 +198,6 @@ impl SearchEngine {
                 .entry(url.to_string())
                 .or_insert(0) += 1;
         }
-
-        // TODO: After updating the index
         self.write_index_to_disk();
     }
 
@@ -241,7 +234,7 @@ impl SearchEngine {
         let btree_index: BTreeMap<_, _> = index_hash_map.into_iter().collect();
         let btree_documents: BTreeMap<_, _> = documents_hash_map.into_iter().collect();
 
-        let data = SavedIndex {
+        let data = index::SavedIndex {
             index_btree_map: btree_index,
             documents_btree_map: btree_documents,
         };
@@ -258,9 +251,9 @@ impl SearchEngine {
     }
 }
 
-fn get_index_from_disk() -> SavedIndex {
+fn get_index_from_disk() -> index::SavedIndex {
     let file = File::open("/tmp/search.db");
-    let mut data = SavedIndex {
+    let mut data = index::SavedIndex {
         documents_btree_map: BTreeMap::new(),
         index_btree_map: BTreeMap::new(),
     };
diff --git a/src/types/index.rs b/src/types/index.rs
new file mode 100644
index 0000000..36afd3f
--- /dev/null
+++ b/src/types/index.rs
@@ -0,0 +1,9 @@
+use std::collections::{BTreeMap, HashMap};
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize)]
+pub struct SavedIndex {
+    pub index_btree_map: BTreeMap<String, HashMap<String, i32>>,
+    pub documents_btree_map: BTreeMap<String, String>,
+}
diff --git a/src/types/mod.rs b/src/types/mod.rs
index af5e216..8625765 100644
--- a/src/types/mod.rs
+++ b/src/types/mod.rs
@@ -1,2 +1,3 @@
 pub mod app_state;
 pub mod config;
+pub mod index;