diff --git a/src/types/installed_mod.rs b/src/types/installed_mod.rs
index eced8c6..518a0bd 100644
--- a/src/types/installed_mod.rs
+++ b/src/types/installed_mod.rs
@@ -1,4 +1,4 @@
-use std::ffi::OsStr;
+use std::{collections::HashSet, ffi::OsStr};
 
 use serde::{Deserialize, Serialize};
 
@@ -10,7 +10,7 @@ use crate::{
 #[derive(Debug, Clone, Deserialize, Serialize, PartialEq, Eq)]
 pub struct InstalledMod {
     id: String,
-    files: Vec<Link>,
+    files: HashSet<Link>,
     priority: isize,
 }
 
@@ -18,13 +18,13 @@ impl InstalledMod {
     pub fn new(root_mod_id: &str, priority: isize) -> Self {
         Self {
             id: root_mod_id.to_owned(),
-            files: Vec::new(),
+            files: HashSet::new(),
             priority,
         }
     }
 
     pub fn add_file(&mut self, file: &ModFile) {
-        self.files.push(Link::from_mod_file(file));
+        self.files.insert(Link::from_mod_file(file));
     }
 
     /// Get the id of the mod
@@ -38,7 +38,7 @@ impl InstalledMod {
     }
 
     /// The selected files
-    pub fn files(&self) -> &[Link] {
+    pub fn files(&self) -> &HashSet<Link> {
         &self.files
     }
 
diff --git a/src/types/link.rs b/src/types/link.rs
index d81cbbb..6f51afc 100644
--- a/src/types/link.rs
+++ b/src/types/link.rs
@@ -5,7 +5,7 @@ use serde::{Deserialize, Serialize};
 use crate::types::mod_file::ModFile;
 
 /// A link between a file from a mod and a destination in a ModdedInstance
-#[derive(Debug, Clone, Deserialize, Serialize, PartialEq, Eq)]
+#[derive(Debug, Clone, Deserialize, Serialize, PartialEq, Eq, Hash)]
 #[serde(from = "(PathBuf, PathBuf)", into = "(PathBuf,PathBuf)")]
 pub struct Link {
     src: PathBuf,